sci.electronics.repair - 25 new messages in 9 topics - digest

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Today's topics:

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TOPIC: instructor solution manual for Stochastic Processes An Introduction by
Peter W Jones and Peter Smith
http://groups.google.com/group/sci.electronics.repair/t/a1f5f70788abb0e7?hl=en
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== 1 of 1 ==
Date: Mon, Jun 21 2010 12:49 am
From: peter kalvin

Here are instructor's solutions manuals to the scientific textbooks in
PDF format. They cover solutions to all problems. If you need any, let
me know its title, edition and author. If your title is not listed
here don't worry because it is a list of some ..
NOTE: This service is NOT free, and Don't reply here, instead send an
email to: kalvinmanual( at )gmail(dot)com

solutions manual to A Course in Game Theory by Osborne, Rubinstein
solutions manual to A Course in Modern Mathematical Physics by Peter
Szekeres
solutions manual to A First Course in Abstract Algebra (7th Ed., John
B. Fraleigh)
solutions manual to A First Course in Differential Equations - The
Classic Fifth Edition By Zill, Dennis G
solutions manual to A First Course In Probability 7th Edition by
Sheldon M. Ross
solutions manual to A First Course in Probability Theory, 6th edition,
by S. Ross.
solutions manual to A First Course in String Theory, 2004, Barton
Zwiebach
solutions manual to A First Course in the Finite Element Method, 4th
Edition logan
solutions manual to A Practical Introduction to Data Structures and
Algorithm Analysis 2Ed by Shaffer
solutions manual to A Quantum Approach to Condensed Matter Physics
(Philip L. Taylor & Olle Heinonen)
solutions manual to A Short Course in General Relativity 2e by J.
Foster and J. D. Nightingale
solutions manual to A Short Introduction to Quantum Information and
Quantum Computation by Michel Le Bellac
solutions manual to Accounting Principles 8e by Kieso, Kimmel
solutions manual to Adaptive Control, 2nd. Ed., by Astrom, Wittenmark
solutions manual to Adaptive Filter Theory (4th Ed., Simon Haykin)
solutions manual to Advanced Accounting 10E international ED by
Beams , Clement, Anthony, Lowensohn
solutions manual to Advanced Calculus Gerald B. Folland
solutions manual to Advanced Digital Design with the Verilog HDL by
Michael D. Ciletti
solutions manual to Advanced Dynamics (Greenwood)
solutions manual to Advanced Engineering Electromagnetics by
Constantine A. Balanis
solutions manual to Advanced Engineering Mathematics 3rd ed zill
solutions manual to Advanced Engineering Mathematics 8Ed Erwin
Kreyszig
solutions manual to Advanced Engineering Mathematics by Erwin
Kreyszig, 9th ed
solutions manual to Advanced Engineering Mathematics, 6th Edition by
Peter V. O'Neil
solutions manual to Advanced Engineering Mathematics,2E, by Zill,
Cullen
solutions manual to Advanced Engineering Thermodynamics, 3rd Edition
by Adrian Bejan
solutions manual to Advanced Financial Accounting by Baker
solutions manual to Advanced Industrial Economics, 2nd ED Stephen
Martin
solutions manual to Advanced Macroeconomics, by David Romer
solutions manual to Advanced Modern Engineering Mathematics 3rd Ed
Glyn James
solutions manual to Advanced Modern Engineering Mathematics, 3rd Ed.,
by G. James
solutions manual to Aircraft Structures for Engineering Students (4th
Ed., T.H.G. Megson)
solutions manual to Algebra & Trigonometry and Precalculus, 3rd Ed By
Beecher, Penna, Bittinger
solutions manual to Algebra Baldor
solutions manual to Algebra-By Thomas W. Hungerford
solutions manual to Algorithm Design (Jon Kleinberg & Ã‰va Tardos)
solutions manual to An Interactive Introduction to Mathematical
Analysis 2nd E (Jonathan Lewin)
solutions manual to An Introduction to Database Systems (8th Ed., C.J.
Date)
solutions manual to An Introduction to Modern Astrophysics (2nd Ed.,
Bradley W. Carroll & Dale A. Ostlie)
solutions manual to An Introduction to Numerical Analysis By Endre
Süli,David F. Mayers
solutions manual to An Introduction to Ordinary Differential Equations
(James C. Robinson)
solutions manual to An Introduction to Signals and Systems by John
Stuller
solutions manual to An Introduction to the Finite Element Method (3rd
Ed., J. N. Reddy)
solutions manual to An Introduction to Thermal Physics by Schroeder,
Daniel V
solutions manual to An Introduction to Thermodynamics and Statistical
Mechanics (2nd Ed, Keith Stowe)
solutions manual to Analog Integrated Circuit Design, by Johns,
Martin
solutions manual to Analysis and Design of Analog Integrated Circuits
(4th Edition) by Gray , Lewis , Meyer
solutions manual to Analytical Chemistry, Higson
solutions manual to Analytical Mechanics 7E by Grant R. Fowles, George
L. Cassiday
solutions manual to Antenna Theory 2nd edition by Balanis
solutions manual to Antennas for All Applications (3rd Ed., John Kraus
& Ronald Marhefka)
solutions manual to Applied Calculus for the Managerial, Life, and
Social Sciences, 7 E, by Soo T. Tan
solutions manual to Applied Econometric Time Series, 2nd Edition by
Enders
solutions manual to Applied Finite Element Analysis 2ed, by LJ
SEGERLIND
solutions manual to Applied Fluid Mechanics (6th Ed., Mott)
solutions manual to Applied Numerical Analysis, 7th Edition, by
Gerald, Wheatley
solutions manual to Applied Numerical Methods with MATLAB for
Engineers and Scientists( Steven C. Chapra)
solutions manual to Applied Partial Differential Equations (4th Ed.,
Haberman)
solutions manual to Applied Partial Differential Equations by J. David
Logan
solutions manual to Applied Quantum Mechanics ( A. F. J. Levi )
solutions manual to Applied Statistics and Probability for Engineers
( 2nd Ed., Douglas Montgomery & George Runger )
solutions manual to Applied Statistics and Probability for Engineers
(3rd Ed., Douglas Montgomery & George Runger)
solutions manual to Applied Strength of Materials (4th Ed., Mott)
solutions manual to Applying Maths in the Chemical and Biomolecular
Sciences, Beddard
solutions manual to Artificial Intelligence A Modern Approach 2e by
Russell, Norvig
solutions manual to Auditing and Assurance Services- An Integrated
Approach 12E by Arens
solutions manual to Auditing and Assurance Services, 12th edition,
Alvin A Arens, Randal J Elder, Mark Beasley
solutions manual to Automatic Control Systems, 8E, by Kuo, Golnaraghi
solutions manual to Basic Electrical Engineering By Nagrath, D P
Kothari
solutions manual to Basic Electromagnetics with Applications by
Nannapaneni Narayana Rao
solutions manual to Basic Engineering Circuit Analysis, 8th Edition by
J. David Irwin, R. Mark Nelms
solutions manual to Basic Heat and Mass Transfer by A. F. Mills
solutions manual to Basic Probability Theory by Robert B. Ash
solutions manual to Bayesian Core by Christian P. Robert and Jean-
Michel Marin
solutions manual to Bioprocess Engineering Principles (Pauline M.
Doran)
solutions manual to Business Statistics - Decision Making 7th E by
David F. Groebner
solutions manual to C++ for Computer Science and Engineering by Vic
Broquard
solutions manual to C++ How to Program 3rd edition - Deitel
solutions manual to Calculus - Early Transcendentals, 6th E, by Anton,
Bivens, Davis
solutions manual to Calculus - Early Transcendentals, 7E, by Anton,
Bivens, Davis
solutions manual to Calculus - Late Transcendentals Single Variable,
8th Ed by Anton, Bivens, Davis
solutions manual to Calculus (9th Ed., Dale Varberg, Edwin Purcell &
Steve Rigdon)
solutions manual to Calculus 2nd edition-M. Spivak
solutions manual to Calculus A Complete Course 6th Edition by by R.A.
Adams
solutions manual to CALCULUS An Intuitive and Physical Approach 2nd ed
by Morris Kline
solutions manual to Calculus and its Applications (11th Ed., Larry J
Goldstein, Schneider, Lay & Asmar)
solutions manual to Calculus by Gilbert Strang
solutions manual to Calculus early transcendentals 8th Ed, by Anton
Bivens Davis
solutions manual to Calculus Early Transcendentals, 5th Edition, JAMES
STEWART
solutions manual to Calculus George Thomas 10th ed Vol 1
solutions manual to Calculus of Variations MA 4311 LECTURE NOTES
( Russak )
solutions manual to Calculus One & Several Variables 8e by S Salas
solutions manual to Calculus Vol 2 by Apostol
solutions manual to Calculus With Analytic Geometry 4th ( Henry
Edwards & David E. Penney)
solutions manual to Calculus with Applications 8 Edition by Lial,
Greenwell, Ritchey
solutions manual to Calculus, 4th edition stewart
solutions manual to Calculus, An Applied Approach, 7E, by Larson
solutions manual to Calculus, Single and Multivariable, 4E.,Vol 1& Vol
2 by Hughes-Hallett,McCallum
solutions manual to Calculus, Single Variable, 3E by Hughes-
Hallett,McCallum
solutions manual to Chemical and Engineering Thermodynamics 3Ed by
Stanley I. Sandler
solutions manual to Chemical Engineering Design (Coulson &
Richardson's Chemical Engineering - Volume 6) - (4th Ed., Sinnott)
solutions manual to Chemical Engineering Volume 1, 6th Edition, by
Richardson, Coulson,Backhurst, Harker
solutions manual to Chip Design for Submicron VLSI CMOS Layout and
Simulation, John P. Uyemura
solutions manual to Cisco Technical Solution Series IP Telephony
Solution Guide Version 2.0
solutions manual to Classical Dynamics of Particles and Systems, 5th
Ed, by Marion, Thornton
solutions manual to Classical Dynamics, A Contemporary Approach (Jorge
V. Jose)
solutions manual to Classical Electrodynamics by John David Jackson
solutions manual to Classical Mechanics (Douglas Gregory)
solutions manual to Classical Mechanics 2nd Ed by Goldstein
solutions manual to CMOS Analog Circuit Design, 2ed by Phillip E.
Allen, Douglas R. Holberg
solutions manual to CMOS- Circuit Design, Layout, and Simulation,
Revised 2nd Ed by R. Jacob Baker
solutions manual to Cmos Digital Integrated Circuits , Sung-Mo
Kang,Yusuf Leblebici
solutions manual to CMOS Mixed-Signal Circuit Design, 2nd Ed by R.
Jacob Baker
solutions manual to CMOS VLSI Design Circuit & Design Perspective 3rd
Ed by Haris & West
solutions manual to Communication Networks, 2e, Alberto Leon-Garcia,
Indra Widjaja
solutions manual to Communication Systems (4th Ed., Simon Haykin)
solutions manual to Communication Systems An Introduction to Signals
and Noise in Electrical Communication, 4E, A. Bruce Carlson
solutions manual to Communication Systems Engineering (2nd Ed., John
G. Proakis & Masoud Salehi)
solutions manual to Complex Variables with Applications, 3rd ED by
David A. Wunsch
solutions manual to Computational Techniques for Fluid Dynamics
Srinivas, K., Fletcher, C.A.J.
solutions manual to Computer Architecture - A Quantitative Approach,
4th Ed by Hennessy, Patterson
solutions manual to Computer Architecture Pipelined & Parallel
Processor Design by Michael J Flynn
solutions manual to Computer Networking A Top-Down Approach Featuring
the Internet, 3E Kurose,Ross
solutions manual to Computer Networking: A Top-Down Approach (4th Ed.,
James F. Kurose & Keith W. Ross)
solutions manual to Computer Networks A Systems Approach, 2nd Edition,
Larry Peterson, Bruce Davie
solutions manual to Computer Networks, 4th Ed., by Andrew S. Tanenbaum
solutions manual to Computer Organization 3rd Edition by Carl
Hamacher , Zvonoko Vranesic ,Safwat Zaky
solutions manual to Computer Organization and Architecture: Designing
for Performance (7th Ed., William Stallings)
solutions manual to Computer Organization and Design The Hardware
Software Interface, 3rd edition by David A Patterson and John L
Hennessy
solutions manual to Computer system architecture 3rd Ed Morris Mano
solutions manual to Computer-Controlled Systems 3rd ED by Astrom,
Wittenmark
solutions manual to Concepts and Applications of Finite Element
Analysis (4th Ed., Cook, Malkus, Plesha & Witt)
solutions manual to Concepts of Modern Physics 6th ED by Arthur Beiser
solutions manual to Concepts of Physics (Volume 1 & 2) by H.C. Verma
solutions manual to Contemporary Engineering Economics (4th Ed., Chan
Park)
solutions manual to Continuum Electromechanics by James R. Melcher
solutions manual to Control Systems Engineering, 4E, by Norman Nise
solutions manual to Control Systems Principles and Design 2e by M.
Gopal
solutions manual to Convex Analysis and Optimization Dimitri P.
Bertsekas
solutions manual to Corporate Finance The Core plus MyFinanceLab
Student Access Kit (Jonathan Berk & Peter DeMarzo)
solutions manual to Corporate Finance, 7E, by Ross
solutions manual to Cost Accounting-A Managerial Emphasis 13th Ed by
Charles Horngren
solutions manual to Cryptography and Network Security (4th Ed.,
William Stallings)
solutions manual to Data & Computer Communication, 7th Ed, by William
Stallings
solutions manual to Data Communications and Networking by Behroz
Forouzan
solutions manual to Data Structures with Java by John R. Hubbard,
Anita Huray
solutions manual to Database Management Systems, 3rd Ed., by
Ramakrishnan, Gehrke
solutions manual to Database System Concepts 5th ED by Silberschatz,
Korth, Sudarshan
solutions manual to Design Analysis in Rock Mechanics by William G.
Pariseau
solutions manual to Design and Analysis of Experiments, 6E, by
Montgomery
solutions manual to Design of Analog CMOS Integrated Circuits by
Razavi
solutions manual to Design of Analog CMOS Integrated Circuits, 2
Edition, by Razavi Douglas C. Montgomery
solutions manual to Design of Fluid Thermal Systems, 2nd Edition janna
solutions manual to Design of Machinery (3rd Ed., Norton)
solutions manual to Design of Reinforced Concrete, 8th Ed by McCormac,
Brown
solutions manual to Design with Operational Amplifiers and Analog
Integrated Circuits (3rd Ed., Sergio Franco)
solutions manual to Device Electronics for Integrated Circuits 3rd
Edition by muller kamins
solutions manual to Differential Equations & Linear Algebra 3rd ed by
C. Henry Edwards & David E. Penney
solutions manual to Differential Equations and Linear Algebra ( 2nd
Ed., Jerry Farlow, Hall, McDill & West)
solutions manual to Differential Equations and Linear Algebra ( C.
Henry Edwards & David E. Penney)
solutions manual to Differential Equations and Linear Algebra 3e by
Stephen W Goode
solutions manual to Differential Equations with Boundary Value
Problems (2e, John Polking, Al Boggess & Arnold)
solutions manual to Digital Communications Fundamentals and
Applications 2e Bernard Sklar
solutions manual to Digital Communications, 4E, by Proakis
solutions manual to Digital Design (4th Ed., M. Morris Mano & Michael
D. Ciletti)
solutions manual to Digital Design: Principles and Practices Package
(4th Ed., John F. Wakerly)
solutions manual to Digital Fundamentals ( 9th Ed., Thomas L. Floyd)
solutions manual to Digital Image Processing, 2e, by Gonzalez, Woods
solutions manual to Digital Integrated Circuits, 2nd Ed., by Rabaey
solutions manual to Digital Logic Design by Mano
solutions manual to Digital Signal Processing - A Modern Introduction,
by Ashok Ambardar
solutions manual to Digital Signal Processing Principles, Algorithms
and Applications, 3rd Edition by John G. Proakis
solutions manual to Digital Signal Processing a computer based
approach (2nd Ed.) (Mitra)
solutions manual to Digital Signal Processing a computer based
approach (Mitra)
solutions manual to Digital Signal Processing by Proakis & Manolakis
solutions manual to Digital Signal Processing by Thomas J. Cavicchi
solutions manual to Digital Systems - Principles and Applications
(10th Ed., Ronald Tocci, Neal Widmer, Greg Moss)
solutions manual to Discrete and Combinatorial Mathematics 5e by Ralph
P. Grimaldi
solutions manual to Discrete Mathematics ( 6th Ed., Richard
Johnsonbaugh )
solutions manual to Discrete Mathematics ( 6th Edition) by Richard
Johnsonbaugh
solutions manual to Discrete Random Signals and Statistical Signal
Processing Charles W. Therrien
solutions manual to Discrete Time Signal Processing, 2nd Edition,
Oppenheim
solutions manual to DSP First A Multimedia Approach-Mclellan, Schafer
& Yoder
solutions manual to Dynamic Modeling and Control of Engineering
Systems 2 E T. Kulakowski , F. Gardner, Shearer
solutions manual to Dynamics of Flight- Stability and Control, 3rd Ed
by Etkin, Reid
solutions manual to Dynamics of Mechanical Systems by C. T. F. Ross
solutions manual to Econometric Analysis, 5E, by Greene
solutions manual to Econometric Analysis, 6E, by Greene
solutions manual to Econometrics of Financial Markets, by Adamek,
Cambell, Lo, MacKinlay, Viceira
solutions manual to Econometrics: A Modern Introduction (Michael P.
Murray)
solutions manual to Electric Circuits (7th Ed., James W Nilsson &
Susan Riedel)
solutions manual to Electric Circuits (8th Ed., James W Nilsson &
Susan Riedel)
solutions manual to Electric Machinery 6th ed. A.E.
Fitzgerald,Kingsley,Umans
solutions manual to Electric Machinery and Power System Fundamentals
(Chapman)
solutions manual to Electric Machinery Fundamentals (4th Ed., Chapman)
solutions manual to Electric Machines Analysis and Design Applying
MATLAB,Jim Cathey
solutions manual to Electric Machines By D. P. Kothari, I. J. Nagrath
solutions manual to Electrical Engineering Principles and Applications
(3rd Ed., Allan R. Hambley)
solutions manual to Electrical Engineering Principles and Applications
(4th Ed., Allan R. Hambley)
solutions manual to Electrical Machines, Drives and Power Systems (6th
Ed., Theodore Wildi)
solutions manual to Electromagnetic Fields and Energy by Haus, Melcher
solutions manual to Electromagnetics Problem Solver (Problem Solvers)
By The Staff of REA
solutions manual to Electromagnetism. Principles and Applications by
LORRAIN, PAUL ; CORSON, DAVID
solutions manual to Electromechanical Dynamics Part 1, 2, 3 by Herbert
H. Woodson, James R. Melcher
solutions manual to Electronic Circuit Analysis, 2nd Ed., by Donald
Neamen
solutions manual to Electronic Devices 6th ed and electronic devices
Electron Flow Version 4th ed, Floyd
solutions manual to Electronic Devices and Circuit Theory 8th Ed by
Robert Boylestad
solutions manual to Electronic Physics Strabman
solutions manual to Electronics, 2nd Ed., by Allan R. Hambley
solutions manual to Elementary Differential Equations ( Werner E.
Kohler, Johnson)
solutions manual to Elementary Differential Equations and Boundary
Value Problems (8th Ed., Boyce & Diprima)
solutions manual to Elementary Linear Algebra 5th edition by Stanley
I. Grossman
solutions manual to Elementary Linear Algebra by Matthews
solutions manual to Elementary Linear Algebra with Applications (9th
Ed., Howard Anton & Chris Rorres)
solutions manual to Elementary mechanics & thermodynamics jhon
w.Nobury
solutions manual to ELEMENTARY NUMBER THEORY AND ITS APPLICATIONS,
(5TH EDITION, Bart Goddard, Kenneth H. Rosen)
solutions manual to Elementary Principles of Chemical Processes (3rd
Ed., Felder & Rousseau)
solutions manual to Elementary Statistics Using The Graphing
Calculator 9 Ed by MILTON LOYER
solutions manual to Elementary Statistics Using the Graphing
Calculator For the TI-83-84 Plus (Mario F. Triola)
solutions manual to Elements of Information Theory - M. Cover, Joy A.
Thomas
solutions manual to Elements of Chemical Reaction Engineering by
Fogler hubbard, hamman , johnson , 3rd edition
solutions manual to Elements of Deductive Inference by Bessie, Glennan
solutions manual to Elements of Electromagnetics , 2 ed by Matthew N.
O. Sadiku
solutions manual to Elements of Electromagnetics , 3ed by Matthew N.
O. Sadiku
solutions manual to Embedded Microcomputer Systems Real Time
Interfacing, 2nd Edition , Jonathan W. Valvano
solutions manual to Engineering and Chemical Thermodynamics (Koretsky)
solutions manual to ENGINEERING BIOMECHANICS (STATICS) by Angela
Matos, Eladio Pereira, Juan Uribe and Elisandra Valentin
solutions manual to Engineering Circuit Analysis 6Ed, Luay Shaban
solutions manual to Engineering Circuit Analysis 6th ed by Hayt
solutions manual to Engineering Circuit Analysis 7th Ed. by William H.
Hayt Jr
solutions manual to Engineering Economy and the Decision-Making
Process (Joseph C. Hartman)
solutions manual to Engineering Electromagnetics 6E by William H. Hayt
Jr. and John A. Buck
solutions manual to Engineering Electromagnetics 7E by William H. Hayt
Jr. and John A. Buck
solutions manual to Engineering Fluid Mechanics - 8th Ed by Crowe,
Elger & Roberson
solutions manual to Engineering Fluid Mechanics 7th Ed by Crowe and
Donald
solutions manual to Engineering Materials Science, by Milton Ohring
solutions manual to Engineering Mathematics (4th Ed., John Bird)
solutions manual to Engineering Mechanics - Dynamics by Boresi,
Schmidt
solutions manual to Engineering Mechanics - Dynamics, 5th Ed (J. L.
Meriam, L. G. Kraige)
solutions manual to Engineering Mechanics - Dynamics, 6th Ed (J. L.
Meriam, L. G. Kraige)
solutions manual to Engineering Mechanics - Statics (10th Edition) by
Russell C. Hibbeler
solutions manual to Engineering Mechanics - Statics (11th Edition) by
Russell C. Hibbeler
solutions manual to Engineering Mechanics - Statics by Boresi, Schmidt
solutions manual to Engineering Mechanics - Statics, 4th Ed (J. L.
Meriam, L. G. Kraige)
solutions manual to Engineering Mechanics - Statics, 6th Ed (J. L.
Meriam, L. G. Kraige)
solutions manual to Engineering Mechanics : Dynamics (11th Ed.,
Hibbeler)
solutions manual to Engineering Mechanics Dynamic (10th Edition)
hibbeler
solutions manual to Engineering Mechanics Dynamics (12th Ed.,
Hibbeler)
solutions manual to Engineering Mechanics Dynamics, Bedford & Fowler,
5th Edition
solutions manual to Engineering Mechanics Dynamics, by R. C. Hibbeler,
3rd
solutions manual to Engineering Mechanics Statics (12th Ed., Hibbeler)
solutions manual to Engineering Mechanics Statics, Bedford & Fowler,
5th Edition
solutions manual to Engineering Statistics (4th Ed., Douglas
Montgomery, George Runger & Norma Faris Hubele)
solutions manual to Essentials of Soil Mechanics and Foundations:
Basic Geotechnics (7th Ed., David F. McCarthy)
solutions manual to Feedback Control of Dynamic Systems (4th Ed.,
Franklin, Powell & Emami-Naeini)
solutions manual to Feedback Control of Dynamic Systems (5th Ed.,
Franklin, Powell & Emami-Naeini)
solutions manual to Field and Wave Electromagnetics 2nd Ed by David K.
Cheng
solutions manual to Financial Accounting 6th Ed by Harrison
solutions manual to Financial Management- Theory and Practice 12 th ED
by Brigham, Ehrhardt
solutions manual to Finite Element Techniques in Structural Mechanics
Ross
solutions manual to First Course in Probability (7th Ed., Sheldon
Ross)
solutions manual to Fluid Mechanics (5th Ed., White)
solutions manual to Fluid Mechanics and Thermodynamics of
Turbomachinery (5th Ed., S.L. Dixon)
solutions manual to Fluid Mechanics by CENGEL
solutions manual to Fluid Mechanics Egon Krause
solutions manual to Fluid Mechanics Fundamentals and Applications by
Çengel & Cimbala
solutions manual to Fluid Mechanics with Engineering Applications,
10th Edition, by Finnemore
solutions manual to Foundations of Colloid Science 2e , Hunter
solutions manual to Foundations of Electromagnetic Theory by John R.
Reitz, Frederick J. Milford
solutions manual to Fourier and Laplace Transform - Antwoorden
solutions manual to Fractal Geometry Mathematical Foundations and
Applications, 2nd Ed Kenneth Falcone
solutions manual to fracture mechanics ; fundamentals and
applications, 2E, by T.L. Anderson
solutions manual to From Polymers to Plastics By A.K. van der Vegt
solutions manual to Fundamentals of Aerodynamics ( 3 Ed., Anderson)
solutions manual to Fundamentals of Aerodynamics (2 Ed., Anderson)
solutions manual to Fundamentals of Applied Electromagnetics (5th Ed.,
Fawwaz T. Ulaby)
solutions manual to Fundamentals of Chemical Reaction Engineering by
Davis
solutions manual to Fundamentals of Complex Analysis ( 3rd Ed., E.
Saff & Arthur Snider )
solutions manual to Fundamentals of Computer Organization and
Architecture by Abd-El-Barr, El-Rewini
solutions manual to Fundamentals of Corporate Finance 8th edition by
Ross
solutions manual to Fundamentals of Corporate Finance 9th edition by
Ross
solutions manual to Fundamentals of Corporate Finance, 4th Edition
(Brealey, Myers, Marcus)
solutions manual to Fundamentals of Differential Equations 7E Kent
Nagle, B. Saff, Snider
solutions manual to Fundamentals of Digital Logic with VHDL Design
(1st Ed., Stephen Brown Vranesic)
solutions manual to Fundamentals of Electric Circuits (2nd.ed.) by
C.K.Alexander M.N.O.Sadiku
solutions manual to Fundamentals of Electric Circuits (4E., Charles
Alexander & Matthew Sadiku)
solutions manual to Fundamentals of Electromagnetics with Engineering
Applications (Stuart Wentworth)
solutions manual to Fundamentals of Electronic Circuit Design , Comer
solutions manual to FUNDAMENTALS OF ENGINEERING ELECTROMAGNETICS, by
DAVID CHENG
solutions manual to Fundamentals of Engineering Thermodynamics, 6th Ed
(Michael J. Moran, Howard N. Shapiro)
solutions manual to Fundamentals of Engineering Thermodynamics, 7th Ed
(Michael J. Moran, Howard N. Shapiro)
solutions manual to Fundamentals of Financial Management 12th edition
James C. Van Horne, Wachowicz
solutions manual to Fundamentals of Fluid Mechanics 5th Ed Munson
Young Okiishi
solutions manual to Fundamentals of Fluid Mechanics, 4E (Bruce R.
Munson, Donald F. Young, Theodore H.)
solutions manual to Fundamentals of Heat and Mass Transfer - 5th
Edition F.P. Incropera D.P. DeWitt
solutions manual to Fundamentals of Heat and Mass Transfer (4th Ed.,
Incropera, DeWitt)
solutions manual to Fundamentals of Heat and Mass Transfer (6th Ed.,
Incropera, DeWitt)
solutions manual to Fundamentals of Logic Design, 5th Ed., by Charles
Roth
solutions manual to Fundamentals of Machine Component Design (3rd Ed.,
Juvinall)
solutions manual to Fundamentals of Manufacturing 2nd Edition by
Philip D. Rufe
solutions manual to Fundamentals of Materials Science and Engineering-
An Integrated Approach, 3rd Ed by Callister
solutions manual to Fundamentals of Modern Manufacturing: Materials,
Processes, and Systems (2nd Ed., Mikell P. Groover)
solutions manual to Fundamentals of Momentum, Heat and Mass Transfer,
5th Ed by Welty,Wilson
solutions manual to Fundamentals of Organic Chemistry, 5E, by T. W.
Graham Solomons
solutions manual to Fundamentals of Physics (7th Ed., David Halliday,
Robert Resnick & Jearl Walker)
solutions manual to Fundamentals of Physics, 8th Edition Halliday,
Resnick, Walker
solutions manual to Fundamentals of Power Semiconductor Devices By
Jayant Baliga
solutions manual to Fundamentals of Probability, with Stochastic
Processes (3rd Ed., Saeed Ghahramani)
solutions manual to Fundamentals of Quantum Mechanics (C.L. Tang)
solutions manual to Fundamentals of Semiconductor Devices, 1st Edition
by Anderson
solutions manual to Fundamentals of Signals and Systems Using the Web
and Matlab (3rd Ed., Kamen & Bonnie S Heck)
solutions manual to Fundamentals of Solid-State Electronics by Chih-
Tang Sah
solutions manual to Fundamentals of Thermal-Fluid Sciences, 2nd Ed. by
Cengel
solutions manual to Fundamentals of Thermodynamics 5th Ed by Sonntag,
Borgnakke and Van Wylen
solutions manual to Fundamentals of Thermodynamics 6th Ed by Sonntag,
Borgnakke & Van Wylen
solutions manual to Fundamentals of Wireless Communication by Tse and
Viswanath
solutions manual to Gas Dynamics (3rd Ed., John & Keith)
solutions manual to General Chemistry 9 Edition by Ebbings, Gammon
solutions manual to General Chemistry, 8th Edition by Ralph H.
Petrucci; William S. Harwood; Geoffrey Herring
solutions manual to Geometry - A High School Course by S. Lang and G.
Murrow
solutions manual to Geometry and Discrete Mathematics Addison Wesley
solutions manual to Guide to Energy Management, 6th Edition by Klaus
Dieter E. Pawlik
solutions manual to Guide to Energy Management, Fifth Edition, Klaus-
Dieter E. Pawlik
solutions manual to HARCOURT MATHEMATICS 12 Advanced Functions and
Introductory Calculus
solutions manual to Harcourt Mathematics 12 Geometry and Discrete
Mathematics
solutions manual to Heat and Mass Transfer: A Practical Approach (3rd.
Ed., Cengel)
solutions manual to Heat Transfer A Practical Approach ,Yunus A.
Cengel 2d ed
solutions manual to Heating, Ventilating and Air Conditioning Analysis
and Design, 6th Edition McQuiston, Parker, Spitler
solutions manual to History of Mathematics: Brief Version (Victor J.
Katz)
solutions manual to Hydraulics in Civil and Environmental Engineering
4 E by Chadwick , Morfett
solutions manual to Industrial Organization Theory & Applications by
Shy
solutions manual to Intermediate Accounting Kieso 12th ed
solutions manual to Introduction to Algorithms, 2nd Ed by Cormen,
Leiserson
solutions manual to Introduction To Analysis (3rdEd) -by William Wade
solutions manual to Introduction to Chemical Engineering
Thermodynamics (7th Ed., Smith & Van Ness)
solutions manual to Introduction to Commutative Algebra by M. F.
Atiyah
solutions manual to Introduction to Digital Signal Processing (in
Serbian) by Lj. Milic and Z. Dobrosavljevic
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==============================================================================
TOPIC: Schematics & standards
http://groups.google.com/group/sci.electronics.repair/t/c62344a753d9d652?hl=en
==============================================================================

== 1 of 4 ==
Date: Mon, Jun 21 2010 2:04 am
From: "Arfa Daily"

"David Nebenzahl" <nobody@but.us.chickens> wrote in message
news:4c1ec026$0$2376$822641b3@news.adtechcomputers.com...
> On 6/20/2010 5:33 PM Arfa Daily spake thus:
>
>> "Cydrome Leader" <presence@MUNGEpanix.com> wrote in message
>> news:hvlhh5$8rh$2@reader1.panix.com...
> >
>>> Arfa Daily <arfa.daily@ntlworld.com> wrote:
>>>>
>>>> "Cydrome Leader" <presence@MUNGEpanix.com> wrote in message
>>>> news:hvk3bu$3ju$1@reader1.panix.com...
> >>>
>>>>> David Nebenzahl <nobody@but.us.chickens> wrote:
> >>>>
>>>>>> Regarding resistor values: Who the hell came up with that new
>>>>>> way of specifying resistance values, like "10R" "or 5K6" or
>>>>>> whatever? And why use this system? I've always used the plain
>>>>>> value of the resistance: 10, 56, 5.6K, 56K, etc. Simple,
>>>>>> obvious, requires no interpretation. Is this some kind of
>>>>>> Euro thing?
>>>>>
>>>>> I first saw that on this newsgroup. My question is what idiots came up
>>>>> with it and why?
>>>>
>>>> Can you really not understand it ? Or are you being deliberately
>>>> obtuse ? It has now been explained to the point where a child
>>>> could understand it. I think it was actually me who you first saw
>>>> using it here, and I'm pretty sure that we went through it all
>>>> for your benefit at the time ...
>>>
>>> That's funny as writing out values the correct and conventional way
>>> doesn't need explanation and a child can follow it, and it's been that
>>> way
>>> for decades.
>>>
>>> I'm still waiting to see values for money being written out as 44"euro
>>> symbol"66 with cents after the end instead of 44.66.
>>>
>>> periods are too confusing, commas are too confusing! help, we're all
>>> stupid these days!
>>
>> OK then. You started going on about writing voltages in that notation, as
>> though you couldn't understand that either. Do they not sell zener diodes
>> in America ? That notation has been used for as long as they've been
>> around. Like BZY88 C6V8. Have you never seen that, or perhaps you've
>> never understood what it meant ?
>
> Actually, I think you misunderstood *him*. He was saying that if you're
> going to use that strange system for resistances, why not also use it for
> voltages (or perhaps any quantity) as well? Instead of 5.6 volts, since
> you're so all-fired worried about the potential loss of a period (sorry,
> full stop), then you should write it as 5V6, no? Or something like that.
>
> I agree with him. Why the concern about potential loss of decimal-place
> information regarding resistances, but not for other parameters like
> voltage?
>
> I think this whole system is needless, and therefore needlessly obtuse, no
> matter that people like you may become accustomed to it. How often does a
> decimal point actually disappear? Seems as if schematics were drawn the
> old "bad" way for decades, and I don't remember any big hullabaloo about
> mistaken resistance values.
>
>

But surely, it is you who misses the point. Considering that 30 or 40 years
ago, just about all semiconductor houses were American, then is it not
likely that it was an American company that came up with the system of
marking zener diodes? And why would you imagine it was done ? Why to avoid
any ambiguity caused by poorly printed decimal points, of course ...

I suppose you're also one of those Luddites who likes to see all of the
capacitor values in decimals of a microfarad as well, or have you caught up
to nF ?

I'm all for not changing systems that are tried and tested just for the sake
of it, but I'm just as happy to embrace change where it has a positive
benefit. And there is one here. All I can say is that if you have never seen
a poorly reproduced schematic where the component identifiers and values are
hard to read, then either you are not professionally involved in service
work, or you are lying to keep pressing your point.

Arfa

== 2 of 4 ==
Date: Mon, Jun 21 2010 2:59 am
From: "Arfa Daily"

"David Nebenzahl" <nobody@but.us.chickens> wrote in message
news:4c1ec140$0$2377$822641b3@news.adtechcomputers.com...
> On 6/20/2010 3:25 PM PlainBill47@yahoo.com spake thus:
>
>> As an aside, what is it with people who seem to feel they have a
>> god-given right to dictate the 'right' way to do things? If they had
>> their way, we'd still be walking everywhere, and seeking shelter in
>> trees at night. Things change; usually for the better, sometimes not.
>> Deal with it.
>
> I'll say "point taken", even though you are obviously disagreeing with my
> (and others') objection to the 8K2 system of ohmic representations.
>
> One could just as easily turn that statement of yours around to wonder how
> the committee that mandated this new system of nomenclature has a right to
> impose their will on us, as the "god-given right to dictate the 'right'
> way to do things".
>
> I just think it's needless, therefore not an improvement, as opposed to
> how living in houses is obviously an improvement over seeking shelter in
> trees at night.
>
> (or is it? ... )
>
>

It's not 'mandated'. Nobody has forced their will on anybody. It's nothing
to do with committees, European based or otherwise. I know we have some
pretty dumb laws and such forced on us by the Euromachine, but it hasn't
reached the point yet where they are dictating how we draw schematics. It's
just a system that someone somewhere - probably a Japanese or Korean
manufacturer, has come up with because they feel that it removes any
possibility of ambiguity on a component value. It's a bit like putting
traffic light turn filter arrows on junctions. For sure, you could argue
that it's not strictly necessary in order to be able to successfully
negotiate the junction. You can do that on a green light alone. But putting
a filter arrow there, removes any ambiguity from when it's safe to go,
particularly for less experienced drivers, or those not absolutely familiar
with a junction.

And as to voltages, some schematics do now use the system for showing
voltages that are in decimal parts. "3V3" is commonly found on schematics.
It's also common now to find the same system in use for capacitors, so 4n7
for instance or 2u2. Whether you like the system or not, it seems to be
getting used more and more, so I think it's a case of learn it and accept
it. It's really no more difficult than any system currently in use, just
different, and it *can* under some circumstances, be an improvement.

Arfa

== 3 of 4 ==
Date: Mon, Jun 21 2010 11:05 am
From: Cydrome Leader

Arfa Daily <arfa.daily@ntlworld.com> wrote:
>
>
> "David Nebenzahl" <nobody@but.us.chickens> wrote in message
> news:4c1ec026$0$2376$822641b3@news.adtechcomputers.com...
>> On 6/20/2010 5:33 PM Arfa Daily spake thus:
>>
>>> "Cydrome Leader" <presence@MUNGEpanix.com> wrote in message
>>> news:hvlhh5$8rh$2@reader1.panix.com...
>> >
>>>> Arfa Daily <arfa.daily@ntlworld.com> wrote:
>>>>>
>>>>> "Cydrome Leader" <presence@MUNGEpanix.com> wrote in message
>>>>> news:hvk3bu$3ju$1@reader1.panix.com...
>> >>>
>>>>>> David Nebenzahl <nobody@but.us.chickens> wrote:
>> >>>>
>>>>>>> Regarding resistor values: Who the hell came up with that new
>>>>>>> way of specifying resistance values, like "10R" "or 5K6" or
>>>>>>> whatever? And why use this system? I've always used the plain
>>>>>>> value of the resistance: 10, 56, 5.6K, 56K, etc. Simple,
>>>>>>> obvious, requires no interpretation. Is this some kind of
>>>>>>> Euro thing?
>>>>>>
>>>>>> I first saw that on this newsgroup. My question is what idiots came up
>>>>>> with it and why?
>>>>>
>>>>> Can you really not understand it ? Or are you being deliberately
>>>>> obtuse ? It has now been explained to the point where a child
>>>>> could understand it. I think it was actually me who you first saw
>>>>> using it here, and I'm pretty sure that we went through it all
>>>>> for your benefit at the time ...
>>>>
>>>> That's funny as writing out values the correct and conventional way
>>>> doesn't need explanation and a child can follow it, and it's been that
>>>> way
>>>> for decades.
>>>>
>>>> I'm still waiting to see values for money being written out as 44"euro
>>>> symbol"66 with cents after the end instead of 44.66.
>>>>
>>>> periods are too confusing, commas are too confusing! help, we're all
>>>> stupid these days!
>>>
>>> OK then. You started going on about writing voltages in that notation, as
>>> though you couldn't understand that either. Do they not sell zener diodes
>>> in America ? That notation has been used for as long as they've been
>>> around. Like BZY88 C6V8. Have you never seen that, or perhaps you've
>>> never understood what it meant ?
>>
>> Actually, I think you misunderstood *him*. He was saying that if you're
>> going to use that strange system for resistances, why not also use it for
>> voltages (or perhaps any quantity) as well? Instead of 5.6 volts, since
>> you're so all-fired worried about the potential loss of a period (sorry,
>> full stop), then you should write it as 5V6, no? Or something like that.
>>
>> I agree with him. Why the concern about potential loss of decimal-place
>> information regarding resistances, but not for other parameters like
>> voltage?
>>
>> I think this whole system is needless, and therefore needlessly obtuse, no
>> matter that people like you may become accustomed to it. How often does a
>> decimal point actually disappear? Seems as if schematics were drawn the
>> old "bad" way for decades, and I don't remember any big hullabaloo about
>> mistaken resistance values.
>>
>>
>
> But surely, it is you who misses the point. Considering that 30 or 40 years

no, it's you that doesn't get it.

> ago, just about all semiconductor houses were American, then is it not
> likely that it was an American company that came up with the system of
> marking zener diodes? And why would you imagine it was done ? Why to avoid
> any ambiguity caused by poorly printed decimal points, of course ...

you mean like a 1N5351?

> I suppose you're also one of those Luddites who likes to see all of the
> capacitor values in decimals of a microfarad as well, or have you caught up
> to nF ?
>
> I'm all for not changing systems that are tried and tested just for the sake
> of it, but I'm just as happy to embrace change where it has a positive
> benefit. And there is one here. All I can say is that if you have never seen
> a poorly reproduced schematic where the component identifiers and values are
> hard to read, then either you are not professionally involved in service
> work, or you are lying to keep pressing your point.

So when is the last time you got confused over "missing" periods again?

seriously.

== 4 of 4 ==
Date: Mon, Jun 21 2010 11:07 am
From: Cydrome Leader

David Nebenzahl <nobody@but.us.chickens> wrote:
> On 6/20/2010 7:09 PM sparky spake thus:
>
>> On Jun 18, 4:18 pm, David Nebenzahl <nob...@but.us.chickens> wrote:
> >
>>> Someone else made a comment in another thread here about weird
>>> schematics (like for home appliances).
>>>
>>> Wanted to get a small discussion going on that topic. My take: there are
>>> good and bad standards for schematics. Personally, I can't stand the
>>> ones that use rectangle shapes for resistors, instead of the traditional
>>> zigzag that [insert name of deity here] intended to be used. (And even
>>> here there are lots of variations, like old-fashioned schematics that
>>> took this symbol rather literally and sometimes had ten or twelve zigs
>>> and zags, as if an actual resistor was being constructed on paper).
>>>
>>> Likewise the wire-connecting/jumping convention: here I much prefer the
>>> modern approach, which is to use a dot for a connection and no dot for
>>> no connection, rather than the clumsy "loop" to indicate one wire
>>> jumping over another with no connection.
>>
>> The jumping over loop is much easier to read on a messed up copy than
>> trying to determine if it is a dot or just a smudge.
>> Using 5K6 for markings also makes it earier to read.
>
> Well, then let me ask you the same question I'm asking others here: if
> that's so, then why don't we use that system (8K2, etc.) for other
> values like voltages, currents, etc? Aren't they also likely to be hard
> to read on a "messed-up copy"? Why not be consistent?

the short answer is they don't know, and like being slaves to stupid
committees.

==============================================================================
TOPIC: Simple hack to get $2000 to your home
http://groups.google.com/group/sci.electronics.repair/t/10a4113b589d989b?hl=en
==============================================================================

== 1 of 1 ==
Date: Mon, Jun 21 2010 2:42 am
From: masti dunia

Simple hack to get $2000 to your home at http://mastidunia.co.cc

Due to high security risks,i have hidden the cheque link in an
image. in that website on left side below search box, click on image
and enter your name and address where you want to receive your
cheque.please dont tell to anyone.

==============================================================================
TOPIC: PDF of SMD device codes and markings with pictures
http://groups.google.com/group/sci.electronics.repair/t/c9d697382b7b006e?hl=en
==============================================================================

== 1 of 1 ==
Date: Mon, Jun 21 2010 2:43 am
From: JW

http://www.4shared.com/document/QQRR-x46/SMD_Codes_Catalog.html
SMD device codes and markings with pictures.

==============================================================================
TOPIC: Sony KV-2784R horiz problem
http://groups.google.com/group/sci.electronics.repair/t/cf85a32f811047d5?hl=en
==============================================================================

== 1 of 1 ==
Date: Mon, Jun 21 2010 6:18 am
From: bill@love.ranch

If anybody is still listening - THANKS for all your help

I finally got the flyback and put everything back and it works
perfectly.

No there parts needed, 'cept the fuse.

On Wed, 28 Apr 2010 10:21:00 -0400, bill@love.ranch wrote:

>Sony KV-2784R died - horiz collapse - fuse F501 blown - pressing power
>button causes TV to try to start then stops - very soft high freq buzz
>is heard. Remote control will not start it. HOT and all diodes in area
>test OK with ohmmeter. Fuse is somewhat blackened at end where it
>seperated, so it wasn't a slight overload. I do not have schematics.
>Is there any history of common component failures here.Just for ref, I
>am very technical and had a repair shop in the 80's - this was built
>11/86 - just after I closed the shop. So speak to me at that level,
>thx.

==============================================================================
TOPIC: Need a little help troubleshooting a tv
http://groups.google.com/group/sci.electronics.repair/t/80843d498adc82ad?hl=en
==============================================================================

== 1 of 1 ==
Date: Mon, Jun 21 2010 6:35 am
From: bill@love.ranch

For the HUM: If u have non-polarized AC plugs on any of the pieces,
try reversing them. If u have more than 2 pieces it could get
confusing. If all are polarized plug them all into the same power
strip or verify the house wiring is correct RE grounds and neutrals.

Are the whitish lines single traces or bands?
Are they horiz or vert?
Are they moving or stationary on the screen?
Horiz Bands could be cause by the same thing as the hum.

Single moving traces (or multiple ones together-but not a band) could
be electrical arcing from a nearby motor or other device.

Vertical lines could be a defect internal to the TV.

On 19 Jun 2010 21:38:46 GMT, Mac Cool <Mac@2cool.com> wrote:

>I bought a used Sanyo DS27930 television for a 2nd tv and there are faint
>whitish lines running through the screen when I watch [digital] satellite
>through the coax, also a steady hum. It doesn't happen on component or
>composite. The picture on coax also isn't as good as the other two. I
>never noticed the problem on my old 20" TV.
>
>I've had one person suggest it was a bad tuner, while another suggested
>it's a ground loop. I'm not sure how to fix a ground loop problem on a
>satellite coax but I suspect that would be the easiest to try first.
>
>Rick

==============================================================================
TOPIC: Marshall Master Lead combo, 1978
http://groups.google.com/group/sci.electronics.repair/t/d7cd534e068b8f7a?hl=en
==============================================================================

== 1 of 4 ==
Date: Mon, Jun 21 2010 6:57 am
From: "N_Cook"

In for more basic problem but query here , should anyone know, as only a
Polish reference out there.
All seems original in there and o/p devices TO3 Motorola, badged SCSP1 and
SCSN1.
Presumably , as only +/-24V rails 3055/2955 would be adequate , if required,
but if anyone knows for sure, for future reference.

== 2 of 4 ==
Date: Mon, Jun 21 2010 8:59 am
From: "Phil Allison"

"Nutcase_Kook"
>
> In for more basic problem but query here , should anyone know, as only a
> Polish reference out there.
> All seems original in there and o/p devices TO3 Motorola, badged SCSP1 and
> SCSN1.
> Presumably , as only +/-24V rails 3055/2955 would be adequate , if
> required,
> but if anyone knows for sure, for future reference.

** The devices are DARLINGTONS - dickhead.

Did you not notice the total absence of DRIVER transistors - eh ???

The pair are MJ2501 and MJ3001.

.... Phil

== 3 of 4 ==
Date: Mon, Jun 21 2010 8:48 am
From: Adam Sampson

"N_Cook" <diverse@tcp.co.uk> writes:

> All seems original in there and o/p devices TO3 Motorola, badged SCSP1
> and SCSN1. Presumably , as only +/-24V rails 3055/2955 would be
> adequate

This schematic shows MJ3001 and MJ2501 as equivalents for SCSN1 and SCSP1:
http://www.drtube.com/schematics/marshall/2099u.gif

These are Darlington pairs, so they have much greater hFE than the
2N3055/MJ2955. They're only about a fiver a pair from Farnell.

--
Adam Sampson <ats@offog.org> <http://offog.org/>

== 4 of 4 ==
Date: Mon, Jun 21 2010 9:10 am
From: "N_Cook"

Adam Sampson <ats@offog.org> wrote in message
news:y2azkyoidzh.fsf@cartman.at.offog.org...
> "N_Cook" <diverse@tcp.co.uk> writes:
>
> > All seems original in there and o/p devices TO3 Motorola, badged SCSP1
> > and SCSN1. Presumably , as only +/-24V rails 3055/2955 would be
> > adequate
>
> This schematic shows MJ3001 and MJ2501 as equivalents for SCSN1 and SCSP1:
> http://www.drtube.com/schematics/marshall/2099u.gif
>
> These are Darlington pairs, so they have much greater hFE than the
> 2N3055/MJ2955. They're only about a fiver a pair from Farnell.
>
> --
> Adam Sampson <ats@offog.org> <http://offog.org/>

The info is out there, for all, in ASCII format now

==============================================================================
TOPIC: Surge Protectors
http://groups.google.com/group/sci.electronics.repair/t/9a42e9c9a84828d9?hl=en
==============================================================================

== 1 of 11 ==
Date: Mon, Jun 21 2010 8:19 am
From: bud--

westom wrote:
> On Jun 19, 12:25 pm, Jeffrey D Angus <jan...@suddenlink.net> wrote:
>> What the plug-in suppressors rely on is the impedance (generally
>> inductive) in the house wiring to limit the rise time of thesurgeuntil the circuit breaker (or fusable parts) have time to
>> react by opening up.
>
> And why Bud will not discuss wire
> impedance and earth ground.

Poor westom's religious blinders prevent him from reading what gets
written. I certainly have written about wire impedance in this thread.

But if westom was not hampered by religious blinders he would read in
the IEEE surge guide that plug-in suppressors do not work primarily by
earthing. They work primarily by clamping the voltage on all wires to
the ground at the suppressor.

>
> bud's citation Page 42 Figure 8 shows a plug-in protecting earthing
> a surge 8000 volts destructively through a nearby TV. He hopes you do
> not grasp the point in his IEEE citation.

I hope everyone will "grasp the point" in the IEEE example.
- The TV connected to the plug-in suppressor is protected.
- "To protect TV2, a second multiport protector located at TV2 is required."

>
> So let's put numbers to it. Let's say the plug-in protector and TV
> are 50 feet of wire from the breaker box. That means it is less than
> 0.2 ohms resistance. And maybe 120 ohms impedance. So that protector
> will earth a trivial 100 amp surge? 100 amps times 120 ohms means the
> protector and TV are at maybe 12,000 volts.

With minimal reading skills westom would have read that at about 6kV
(US) there is arc-over at the service panel from bus to enclosure/ground
- which is connected to the earthing electrode and neutral. After the
arc is established, the voltage is hundreds of volts. The same thing
happens at receptacles. This is a well established action for people who
are familiar with surge protection.

westom makes up a 100 amp surge on the branch circuit and 120 ohm
impedance - won't happen together.

> Why did the protector
> earth that surge 8000 volts through the TV?

And the lie repeated - 5th time?

In the IEEE example - of how plug-in suppressors protect - the
suppressor at TV1 causes absolutely NO damage to TV2.

>
> Why do telcos all over the world not waste money on bud's plug-in
> protectors?

Ho-hum - because telco switches are high amp, hard wired, and thousands
of phone circuits would have to go through the plug-in suppressor.

>
> Learn that no protector works by absorbing energy.

True of service panel and plug-in suppressors (but they absorb some
energy while protecting).

If you put a MOV across a relay coil, it protects by absorbing energy.

> That is why the
> protector too close to appliances and too far from earth ground can
> even earth that surge 8000 volts destructively through a nearby TV.

The lie repeated - 6th time?

In the IEEE example the surge comes in on the cable service.
westom has not explained how his service panel suppressor would provide
any protection.
That is because it would provide absolutely NO protection.

With separated service entry points the IEEE guide says "the only
effective way of protecting the equipment is to use a multiport
[plug-in] protector."

> A
> majority only believe the advertising myths - that protectors
> magically make hundreds of thousands of joules just magically
> disappear.

Only magic if you suffer from willful stupidity.

> IOW a protector
> is only as effective as its earth ground.

Ho-hum - still never explained - why aren't flying airplanes crashing
every day when they are hit by lightning? They must drag an earthing chain.

Still missing - any reliable source that agrees with westom that plug-in
suppressors are NOT effective.

Still missing - answers to simple questions:
- Why do the only 2 examples of protection in the IEEE guide use plug-in
suppressors?
- Why does the NIST guide says plug-in suppressors are "the easiest
solution"?
- Why does the NIST guide say "One effective solution is to have the
consumer install" a multiport plug-in suppressor?
- How would a service panel suppressor provide any protection in the
IEEE example, page 42?
- Why does the IEEE guide say for distant service points "the only
effective way of protecting the equipment is to use a multiport
[plug-in] protector"?
- Why did Martzloff say in his paper "One solution. illustrated in this
paper, is the insertion of a properly designed [multiport plug-in surge
suppressor]"?
- Why does Dr. Mansoor support multiport plug-in suppressors?

- Why does "responsible" manufacturer SquareD says "electronic
equipment may need additional protection by installing plug-in
[suppressors] at the point of use"?
- Why donï¿½t favored SquareD service panel suppressors list "each type of
surge"?

For real science read the IEEE and NIST surge guides. Both say plug-in
suppressors are effective.

--
bud--

== 2 of 11 ==
Date: Mon, Jun 21 2010 8:23 am
From: bud--

Jim Yanik wrote:
> "David" <someone@somewhere.com> wrote in news:hvmjej$2ep$1@news.eternal-
> september.org:
>
>>
>>>>>> A MOV is somewhat like two back-to-back Zener diodes.
>>>>>> It
>>>>>> is
>>>>>> a voltage clamp.
>>>>> no,it's not. it does not "clamp" the voltage.
>>>>>
>>>>>> You do not pass energy to ground, you pass
>>>>>> current to ground just like you do with any load. The
>>>>>> energy
>>>>>> is totally dissipated in the MOV.
>>> Uh,"passing current to ground" IS passing energy to
>>> ground.
>>>
>>>>>> David
>>>>>>
>>>>>>
>>>>>>
>>>>> totally wrong.
>>>>> Wiki has a nice article on metal-oxide varistor,I
>>>>> suggest
>>>>> you read it.
>>>>>
>>>>> --
>>>>> Jim Yanik
>>>>> jyanik
>>>>> at
>>>>> localnet
>>>>> dot com
>>>> Jim, I am not going to get into a flame war over this
>>>> topic.
>>>> Maybe you should check this out:
>>>>
>>>> <http://www.cliftonlaboratories.com/metal_oxide_varistor_(mov).htm>
>>>>
>>>> David
>>>>
>>>>
>>> http://en.wikipedia.org/wiki/Metal_oxide_varistor
>>>
>>> Varistors can absorb part of a surge. How much effect this
>>> has on risk to
>>> connected equipment depends on the equipment and details
>>> of the selected
>>> varistor. Varistors do not absorb a significant percentage
>>> of a lightning
>>> strike, as energy that must be conducted elsewhere is many
>>> orders of
>>> magnitude greater than what is absorbed by the small
>>> device.
>>>
>>> --
>>> Jim Yanik
>> This is my final say on this topic. In the quote above, you
>> assume the section saying that "... energy that must be
>> conducted elsewhere ..." goes to ground through the MOV.
>> This is where your error resides. The energy is going
>> elsewhere but being dissipated somewhere else completely
>> such as blowing up a transformer. The article should also
>> use the term dissipated elsewhere to make things clearer.
>
> feel free to edit it.
>> You also assume that passing current is equivalent to
>> dissipating energy.
>
>
> No,that's what YOU assume I said. Wrongly.
>
>> Current can *move* energy somewhere, but
>> electrical energy is only dissipated when the current causes
>> a voltage drop. A perfect ground will not have a voltage
>> drop so that is not where the the energy is being
>> dissipated.
>
> HA,now you're talking about "perfect grounds".Sheesh.
> you don't know what you're talking about.

I agree. The vast majority of energy in a lightning strike is passed on
to the earth.

Assume a surge of 10,000A on a service wire (maximum that has a
reasonable probability), a very good resistance to earth of 10 ohms and
a duration of 100 microseconds. If I am multiplying right that is
100,000 joules dissipated in the earth.

If you had a service panel suppressor with UL let through voltage of
330V (measured at a specified current much lower than 10kA) the actual
voltage across the MOV might be 500V and the energy dissipated for the
same surge would be 500 joules.

Most of the energy that was available at the cloud is dissipated on the
trip down - in heat, light, sound....

In about any lightning strike there are multiple paths to earth -
multiple utility earthing points, multiple houses, ....

>
> BTW,when a lightning strike hits a ground,it dissipates it's energy -in the
> ground-. literally.

Nice example.
>
> It even makes a fulgurite.(fused earth)
>

== 3 of 11 ==
Date: Mon, Jun 21 2010 8:34 am
From: bud--

Jim Yanik wrote:
> "William Sommerwerck" <grizzledgeezer@comcast.net> wrote in
> news:hvl00i$lma$1@news.eternal-september.org:
>
>> "Cydrome Leader" <presence@MUNGEpanix.com> wrote in message
>> news:hvk9c7$hrm$2@reader1.panix.com...
>>> William Sommerwerck <grizzledgeezer@comcast.net> wrote:
>>>>>> Many years ago, PC and/or Byte (I forget which) used to test
>> suppressors.
>>>>>> If they failed to provide suppression, I assume the mag would have
>>>>>> said
>> so.
>>
>>>>> Hilarious, PC magazine is your source for the lowdown on surge
>> supression
>>>>> devices?
>>>> It was, 20 years ago. I don't think you get the point, though.
>>> So what is the point? John Dvorak wrote a story about surge
>>> supressors and how they worked with his Cumulus 386 laptop and his
>>> CompuAdd 486sx tower?
>> The point is that they were performing lab tests on the suppressors.
>> These tests included determining the clamping voltage. (I don't
>> remember if they were tested to destruction.) The tests were
>> presumably performed in accordance with industry-accepted standards.
>>
>>
>>
>
> "clamping" is a misuse of the word WRT surge protectors.
> It misleads people,as in "david" s post.
>
> "trigger voltage" might more accurate.

MOVs have a smooth, but nonlinear, curve from not conducting at low
voltage to high conduction current at higher voltages. They do not
"trigger" like a neon light. And the voltage across the MOV does not
suddenly decrease, like it would in a neon light (you probably didn't
say it did). "Clamping" is a widely used term, including the wiki
article on MOVs. (Gas discharge tubes are like a neon light, and do
trigger.)

One of the parameters for a MOV is MCOV (maximum continuous operating
voltage) which is the voltage at which the current is 1 mA. The
increase in current is smooth (but very non-linear) above the MCOV, just
like it was smooth (and non-linear) below the MCOV.

(When the MCOV for a MOV decreases 10% it is the defined end of life for
a MOV - referred to in the wiki article.)

A MOV is very much like back-to-back Zener diodes, but does not clamp as
sharply. But MOVs have huge current capacity in a small package.

The clamp voltage that is usually cited is the UL let through voltage
(UL calls it something a little different). This is the voltage at a
specified test surge current. If the surge current goes up, the let
through voltage will be higher (in a non-linear way).

--
bud--

== 4 of 11 ==
Date: Mon, Jun 21 2010 9:12 am
From: Jeff Liebermann

On Sun, 20 Jun 2010 14:39:27 -0500, Jeffrey D Angus
<jangus@suddenlink.net> wrote:

>David wrote:
>> <http://www.cliftonlaboratories.com/metal_oxide_varistor_(mov).htm>
>
>Amazing coincidence that they act much like the old NE-2 neon
>bulb across the antenna leads of old receivers for protection.
>
>They would conduct around 65 volts and suddenly go to near
>zero impedance, safely shunting what ever energy on the antenna
>line to ground.
>
>And although most receiver inputs couldn't handle a steady state
>of 65 volts (or 130 vpp), they could handle them long enough for
>the neon bulb to conduct and then shunt them to ground.

We used to test our radios with 117vac on the antenna terminals. While
not a required test, it happened often enough that it was worth
testing and protecting. The AC plug to PL-259 test cable on my cable
rack generated quite a few odd questions.

Neon lamps, MOV's, back to back diodes, PIN diodes, and such are
generally a bad idea in high RF environments. Any non-linear device
between the antenna and the RF amp is going to act like a mixer and
create the dreaded intermodulation products. MOV's and diodes are
particularly bad because they start to slightly conduct at nearly zero
voltage, and increase exponentially with increasing signal. The MOV
also has 100-1000pf of unstable and unpredictable capacitance, which
is not a good thing on the antenna input. The closest approximation
of an ideal protection device are the one-time gas filled spark gaps
used in lightning protectors. No conduction at all until they arc
over. Then, they're dead.

Question:
What's the peak to peak output voltage of a 50 watt transmitter
into 50 ohms?
Answer:
V = 2.828 * 50^2 / 50 = 141 volts p-p
Now, do you REALLY want a device that conducts at 65 volts across the
xmitter antenna terminals?

I actually tried a varistor across the antenna terminals of an HF 150w
PEP xmitter and confirmed the big bang theory.

Hint: Things work differently at 60Hz than at RF frequencies.

--
Jeff Liebermann jeffl@cruzio.com
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558

== 5 of 11 ==
Date: Mon, Jun 21 2010 9:16 am
From: GS

On Jun 20, 1:36 am, Cydrome Leader <prese...@MUNGEpanix.com> wrote:
> William Sommerwerck <grizzledgee...@comcast.net> wrote:
> >>> Many years ago, PC and/or Byte (I forget which) used to test suppressors.
> > If
> >>> they failed to provide suppression, I assume the mag would have said so.
>
> >> hillarious, PC magazine is your source for the lowdown on surge supression
> >> devices?
>
> > It was, 20 years ago. I don't think you get the point, though.
>
> So what is the point? John Dvorak wrote a story about surge supressors and
> how they worked with his Cumulus 386 laptop and his CompuAdd 486sx tower?

My news reader sees a problem in these postings
.

Mark Waller wrote an article for Byte.
I have his book PC Power Protection from 1988.
Great reading. I should also have that mag article if
anybody is interested. I should look it up.

From worrying too much about protection, Mark is now a Family
Therapist.

greg

== 6 of 11 ==
Date: Mon, Jun 21 2010 9:49 am
From: westom

On Jun 21, 11:19 am, bud-- <remove.budn...@isp.com> wrote:
> Poor westom's religious blinders prevent him from reading what gets
> written. I certainly have written about wire impedance in this thread.

Bud promotes plug-in protectors. It is his job. Either that
protector connects energy harmlessly to earth. Energy absorbed
without damage. Or energy is inside the building - bud's IEEE guide
Page 42 Figure 8 - hunting for earth destructively via appliances.
8000 volts destructively through the TV because bud's miracle
protector cannot absorb destructive surges.

bud's NIST citation also describes bud's "profit center" protectors:
> A very important point to keep in mind is that your surge protector will work by diverting the
> surges to ground. The best surge protection in the world can be useless if grounding is
> not done properly.

No earth ground (bud's high profit protectors) means no effective
protection. Even the NIST says so. All of bud's citations say that.

Meanwhile IEEE Standards (the Red Book) - where the IEEE makes all
recommendations - state what is always necessary for surge protection
- and what bud denies:
> In actual practice, lightning protection is achieve by the process of interception of lightning produced
> surges, diverting them to ground, and by altering their associated wave shapes.

Or IEEE Emerald Book:
> It is important to ensure that low-impedance grounding and bonding connections exist among the
> telephone and data equipment, the ac power system's electrical safety-grounding
> system, and
> the building grounding electrode system. ...
> Failure to observe any part of this grounding requirement may result in hazardous potential being
> developed between the telephone (data) equipment and other grounded items that personnel may
> be near or might simultaneously contact.

Protection is always about where energy dissipates. That means an
effective protector connects short (ie 'less than 10 feet') to single
point earth ground. But somehow bud's protectors magically make
energy just disappear? It is what he is paid to promote. It is why
he gets angry. Reality would harm profits.

Surge protection means energy dissipates harmlessly in earth;
outside the building. A protector without that dedicated and short
connection to earth does not claim protection in its numeric specs -
as bud tacitly admits. So bud's protector magically makes that energy
disappear? That is also what bud tacitly claims.

== 7 of 11 ==
Date: Mon, Jun 21 2010 9:55 am
From: westom

On Jun 20, 3:54 pm, mike <mlight...@survivormail.com> wrote:
> I've been following this thread, and I got to wondering are there any
> accepted methods to tell if asurgearrestor setup is still usable as
> such?

Assuming they are MOV based, read MOV datasheets to learn how MOVs
work and obtain relevenant numbers for the test. Perform a 1
milliamp test to confirm these numbers on that protector. This test
is described in some manufacturer application notes.

The test only confirms the protector can conduct. Does not say
anything about what makes a protector effective - the earth ground and
how it connects to earth. The best surge protection in the world can
be useless if grounding is not done properly.

== 8 of 11 ==
Date: Mon, Jun 21 2010 10:40 am
From: bud--

westom wrote:
> On Jun 21, 11:19 am, bud-- <remove.budn...@isp.com> wrote:
>> Poor westom's religious blinders prevent him from reading what gets
>> written. I certainly have written about wire impedance in this thread.
>
> Bud promotes plug-in protectors. It is his job.

westom just continues to repeat the same lies - a la Goebbels.

And the same misrepresentations - a la religious fanaticism. All the
sources westom uses, including even his favorite manufacturers, say
plug-in suppressors are effective.

In particular, the IEEE and NIST surge guides both say plug-in
suppressors are effective. Links have been provided to these reliable
sources.

There are 259,615,938 other web sites, including 23,843,032 by lunatics,
and westom can't find another lunatic that says plug-in suppressors are
NOT effective.

Also still missing - answers to simple questions:
- Why do the only 2 examples of protection in the IEEE guide use plug-in
suppressors?
- Why does the NIST guide says plug-in suppressors are "the easiest
solution"?
- Why does the NIST guide say "One effective solution is to have the
consumer install" a multiport plug-in suppressor?
- How would a service panel suppressor provide any protection in the
IEEE example, page 42?
- Why does the IEEE guide say for distant service points "the only
effective way of protecting the equipment is to use a multiport
[plug-in] protector"?
- Why did Martzloff say in his paper "One solution. illustrated in this
paper, is the insertion of a properly designed [multiport plug-in surge
suppressor]"?
- Why does Dr. Mansoor support multiport plug-in suppressors?
- Why aren't airplanes crashing daily when they get hit by lightning (or
do they drag an earthing chain)?
- Why does "responsible" manufacturer SquareD says "electronic
equipment may need additional protection by installing plug-in
[suppressors] at the point of use"?
- Why don�t favored SquareD service panel suppressors list "each type of
surge"?

Why can't you answer simple questions westom????

--
bud--

== 9 of 11 ==
Date: Mon, Jun 21 2010 11:00 am
From: zekfrivo@zekfrivolous.com (GregS)

In article <4eab9a2b-92e3-45d3-9835-e37bd81c1b43@i28g2000yqa.googlegroups.com>, westom <westom1@gmail.com> wrote:
>On Jun 20, 3:54=A0pm, mike <mlight...@survivormail.com> wrote:
>> I've been following this thread, and I got to wondering are there any
>> accepted methods to tell if asurgearrestor setup is still usable as
>> such?
>
> Assuming they are MOV based, read MOV datasheets to learn how MOVs
>work and obtain relevenant numbers for the test. Perform a 1
>milliamp test to confirm these numbers on that protector. This test
>is described in some manufacturer application notes.
>
> The test only confirms the protector can conduct. Does not say
>anything about what makes a protector effective - the earth ground and
>how it connects to earth. The best surge protection in the world can
>be useless if grounding is not done properly.

IEEE 587 and UL 1449 Talks of 3-6KV and 500 amps typical
test produces eventual failure.

greg

== 10 of 11 ==
Date: Mon, Jun 21 2010 11:01 am
From: zekfrivo@zekfrivolous.com (GregS)

In article <0dd5b620-6272-4ed8-9169-a704119b1a1d@s9g2000yqd.googlegroups.com>, GS <zekor@comcast.net> wrote:
>On Jun 20, 1:36=A0am, Cydrome Leader <prese...@MUNGEpanix.com> wrote:
>> William Sommerwerck <grizzledgee...@comcast.net> wrote:
>> >>> Many years ago, PC and/or Byte (I forget which) used to test suppress=
>ors.
>> > If
>> >>> they failed to provide suppression, I assume the mag would have said =
>so.
>>
>> >> hillarious, PC magazine is your source for the lowdown on surge supres=
>sion
>> >> devices?
>>
>> > It was, 20 years ago. I don't think you get the point, though.
>>
>> So what is the point? John Dvorak wrote a story about surge supressors an=
>d
>> how they worked with his Cumulus 386 laptop and his CompuAdd 486sx tower?
>
>My news reader sees a problem in these postings
>..
>
>Mark Waller wrote an article for Byte.
>I have his book PC Power Protection from 1988.
>Great reading. I should also have that mag article if
>anybody is interested. I should look it up.
>
>From worrying too much about protection, Mark is now a Family
>Therapist.

Here is the article.

http://zekfrivolous.com/misc/waller.pdf

== 11 of 11 ==
Date: Mon, Jun 21 2010 12:07 pm
From: zekfrivo@zekfrivolous.com (GregS)

In article <hvo9ba$fs5$2@usenet01.srv.cis.pitt.edu>, zekfrivo@zekfrivolous.com (GregS) wrote:
>In article <0dd5b620-6272-4ed8-9169-a704119b1a1d@s9g2000yqd.googlegroups.com>,
> GS <zekor@comcast.net> wrote:
>>On Jun 20, 1:36=A0am, Cydrome Leader <prese...@MUNGEpanix.com> wrote:
>>> William Sommerwerck <grizzledgee...@comcast.net> wrote:
>>> >>> Many years ago, PC and/or Byte (I forget which) used to test suppress=
>>ors.
>>> > If
>>> >>> they failed to provide suppression, I assume the mag would have said =
>>so.
>>>
>>> >> hillarious, PC magazine is your source for the lowdown on surge supres=
>>sion
>>> >> devices?
>>>
>>> > It was, 20 years ago. I don't think you get the point, though.
>>>
>>> So what is the point? John Dvorak wrote a story about surge supressors an=
>>d
>>> how they worked with his Cumulus 386 laptop and his CompuAdd 486sx tower?
>>
>>My news reader sees a problem in these postings
>>..
>>
>>Mark Waller wrote an article for Byte.
>>I have his book PC Power Protection from 1988.
>>Great reading. I should also have that mag article if
>>anybody is interested. I should look it up.
>>
>>From worrying too much about protection, Mark is now a Family
>>Therapist.
>
>
>Here is the article.
>
>http://zekfrivolous.com/misc/waller.pdf

If its not clear, the first thing a great surpressor must have, is an isolation transformer.

greg

==============================================================================
TOPIC: Sound Technology ST-1700B distortion analyzer measurement pegs meter on
low range.
http://groups.google.com/group/sci.electronics.repair/t/c424590bd89f618b?hl=en
==============================================================================

== 1 of 1 ==
Date: Mon, Jun 21 2010 12:14 pm
From: "David Farber"

Michael A. Terrell wrote:
> David Farber wrote:
>>
>> "Michael A. Terrell" <mike.terrell@earthlink.net> wrote in message
>> news:T-ednVZAeKq1RIHRnZ2dnUVZ_s6dnZ2d@earthlink.com...
>>>
>>> David Farber wrote:
>>>>
>>>> One of my ~30 year old Sound Technology distortion/power analyzers
>>>> has a problem. It's been sitting around for a number of years
>>>> because I had a spare. The symptom is that when you are measuring
>>>> distortion and move the rotary selector switch one step from the
>>>> 1% range to the .3% range, the meter goes from a near zero reading
>>>> to full deflection and then some. If I feed the signal output to
>>>> my other analyzer, the distortion is very low so I know the
>>>> oscillator is ok.
>>>>
>>>> Here is a copy of the schematic:
>>>> http://members.dslextreme.com/users/farberbear/Repair/st-1700b/st-1700b.html
>>>>
>>>> At the output of U202, pin 6, the signal goes from zero (meter is
>>>> working properly) to a nice sine wave (meter pegs) when the switch
>>>> is rotated.to the .3% range and below. The signal is too low to
>>>> measure at the input of U202 no matter where the switch is. There
>>>> is a very detailed circuit description in the owner's manual.
>>>> However I have a general sense that there's an open circuit
>>>> somewhere causing the gain to go full blast. I cleaned the
>>>> switches but it wasn't of any help. Anyone have any clever ideas
>>>> as to how to pinpoint the trouble?
>>>
>>> Troubleshoot it. Is the switch part of an attenuator, or does it
>>> switch in more gain for the last range? Look to see if the op amp
>>> is oscillating. Look for bad electrolytics on the supply rails.
>>> It isn't rocket science. A distortion analyzer is a tunable notch
>>> filter and attenuator, followed by an AC voltmeter.
>>>
>>
>> The first thing I did was to check all the caps. They're ok.
>>
>> You can see from the schematic that the switch is part of the
>> attenuator and that U202 is before the attenuator switch. So my
>> question is why does U202 suddenly have a wild signal swing when
>> switched to the next lower step?
>>
>> Thanks for your reply.
>
>
> You have a lot of DC coupled stages, and some are not very good op
> amps. A dc offset can make a string like that unstable. Did you look
> at pin 6 of U202 with a low capacitance scope probe? How does the DC
> voltage there compare to the working unit?
>
> Are the op amps marked 2605 Harris HA2605? If so, they have been
> out of production for some time. Metal cased op amps, (and other
> metal cased ICs) started disapearing 10 years ago.
>
> You might luck out and fix it with a couple .1 caps to ground of the
> supply pins of U202 if it's oscillating. Another thing to check is
> all the mounting screws for the PC board and any shields. Loosen the
> screws and tighten them up to remove any oxide. Generally op amps
> oscillate from defective bypass caps, or signals being coupled from
> another circuit. Also, did you test the resistance for the contacts
> in that mode after you cleaned the switches? An open or high
> resistance contact cn upset the circuit.
>
> One question. Is the sine wave close to the frequency the filter is
> tuned to?

Hi Michael,

The oscillating is at the same frequency of the signal output (1kHz) so I
assume that is not a parasitic oscillation. I make a mistake in identifying
the correct IC, I should have said U203 is where the wild voltage swing
takes place.

Here are some readings I made with my low capacity 10:1 probe:

U202, pin 6 output, selector set to 1% range, 4.8 Vp-p.
U203, pin 6 output, selector set to 1% range, 0.0 Vp-p.

U202, pin 6 output, selector set to .3% range, 3.8 Vp-p.
U203, pin 6 output, selector set to .3% range, 2.8 Vp-p.

I was about to end my message at this point when I went back and re-read
your message to make sure I didn't leave anything out. I noticed the part
where you mentioned comparing the good analyzer to the bad one. So I
disassembled the good one and checked the dc voltages first. They were ok as
were the dc voltages on the bad one. On the AC side, of course the voltages
were zero at the output of U203 on the good one. Here comes the fun part.
While probing around the bad one again, I could hear the meter pegging as I
was touching different pins trying to hold my hand steady. All of a sudden,
the signal was gone and the meter stopped pegging. It seems to be working
correctly now. BUT if I move the frequency select switches from X100 on the
top row, X10 on the next row to X10 on the top row, X100 on the next row
(still maintaining a 1kHz signal), the distortion is much higher, over 3%.
If I gently tap the X100 switch on row 2, the meter jumps around like a bad
tape monitor switch but never drops below 3%. There is a yellow sticker on
the shield that covers the frequency selector switches that says, "WARNING
DO NOT SPRAY SWITCHES. PUSHBUTTON SWITCHES ARE PERMANENTLY LUBRICATED." etc.
etc. Perhaps the switches are causing all of these symptoms?

Thanks for your reply,

--
David Farber
David Farber's Service Center
L.A., CA

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