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"Michael A. Terrell" <mike.terrell@earthlink.net>: Mar 27 05:03PM -0400 > > it looks the same size black lump and the connector pushes in, so it > > must be ok .   > Once upon a time, there was movement to color-code and size-code these things... It never quite took.     Have you seen these adapters?   http://www.ebay.com/itm/171829811403

"pfjw@aol.com" <pfjw@aol.com>: Mar 27 04:00PM -0700 On Sunday, March 27, 2016 at 5:03:32 PM UTC-4, Michael Terrell wrote:   > > Once upon a time, there was movement to color-code and size-code these things... It never quite took.   > Have you seen these adapters?   > http://www.ebay.com/itm/171829811403   I have. Sadly, it was the south end where the color-coding never took, not the north end.   Peter Wieck Melrose Park, PA

Cydrome Leader <presence@MUNGEpanix.com>: Mar 28 03:58PM > I would actually like to have a switch on the front panel of an amp to switch the pre out/main in loop rather than their jumpers. Too easy to lose.   > And then my buddy got this Marantz, a really nice one, 2325. It has the type of jack where you plug something in and it breaks the connection. I'd much rather have a switch, even if it is on the back and many of them are.   > Another thing I noticed about those shunts is ain't none of the MFs ever the same size. I have had a drawerfull of them and still had to make shunts out of 12 gauge wire because none of them fit.   When would you use a diferent preamp, or different power amp in an integrated unit anyways? Anything with the shunts was already packed with all sorts of silly inputs to start with.

Cydrome Leader <presence@MUNGEpanix.com>: Mar 28 04:20PM > test procedure for all the old 1970s Marantz amps, was to throw a short > circuit across the outputs. If it didn't survive, it would not be given > back to the owner (until it did).   It is sort of sad it can't handle that. Just a few warranty service calls would pay for hundreds or thousands of fuse to have been installed.

T i m <news@spaced.me.uk>: Mar 28 03:40PM +0100 On Sat, 26 Mar 2016 19:06:00 -0500, M Philbrook <jamie_ka1lpa@charter.net> wrote:   <snip>   FWIW, I've just desoldered the legs of the power FETs, tacked short wires into them and plugged them into my little component tester. I'd say the results suggest they are ok?   (Looking at the FETs left to right):   https://dl.dropboxusercontent.com/u/5772409/FET%20board.jpg https://dl.dropboxusercontent.com/u/5772409/FET%201.jpg https://dl.dropboxusercontent.com/u/5772409/FET%202.jpg https://dl.dropboxusercontent.com/u/5772409/FET%203.jpg https://dl.dropboxusercontent.com/u/5772409/FET%204.jpg     > That driver board has a lot of bad solder joints on it...   Again, when I de-soldered them they looked ok so it may have just been a camera thing.   >Use loup if you have one put some clean solder on the joints where > the power fets are especially.   Whilst some of the joints look a bit 'iffy' under the loup, I think they are just that and are making electrical connection. The worst seem to be post manufacturer 'mods' rather than straight manufacturing faults.   I have found a generic BMS board on eBay that looks compatible so in light of the FET test (assuming the test means anything) I might just give one of those a go.   Cheers, T i m

"Ralph Mowery" <rmowery28146@earthlink.net>: Mar 28 10:59AM -0400 "T i m" <news@spaced.me.uk> wrote in message news:9nfifb1ete4av4j64ah44j73rs0ac3mba3@4ax.com... > https://dl.dropboxusercontent.com/u/5772409/FET%202.jpg > https://dl.dropboxusercontent.com/u/5772409/FET%203.jpg > https://dl.dropboxusercontent.com/u/5772409/FET%204.jpg   The 2 nd from the right To-220 looking FET seems to be shorter than the others. As the back of the FET is the 3 rd leg should it have a wire connecting to that long pad above it ?

T i m <news@spaced.me.uk>: Mar 28 05:19PM +0100 On Mon, 28 Mar 2016 10:59:19 -0400, "Ralph Mowery"   >The 2 nd from the right To-220 looking FET seems to be shorter than the >others. As the back of the FET is the 3 rd leg should it have a wire >connecting to that long pad above it ?   Well spotted (and thanks for looking etc) but for some reason there is no tag on that FET but the whole back was soldered to what I think is the ground at the back.   In fact, I desoldered the tag on the right hand FET and the two leads from the pads but it was still stuck solid. It seems there are two soldered areas under the FETs, one under the tag and one right underneath.   Whilst de-soldering the 3rd FET it came off the board completely.   Cheers, T i m

"Michael A. Terrell" <mike.terrell@earthlink.net>: Mar 27 04:56PM -0400 > Eveready or Duracell, either will replace the unit at no cost. Chinese crap, no. Fluke would call that negligence, and rightly so.     Peter, the Fluke meters that I've repaired all had GE labeled NiCads. They were assembled in the form of two packs of two cells that were soldered together in a pair, and they used some Berg terminals that snapped onto tiny ball tipped terminal posts. They were approximately C cell sized, and each pair was in a snap on cover, one on each side of the line transformer. I have located a supply of new cells from another OEM, but the wires are hard as a rock, and most of the terminals ar damaged in the latest batch of Fluke 8050 meters that I received. I have been unable to locate the part number for the terminals. It isn't listed in the Fluke manuals. We used that terminal at Microdyne, but I no longer have any contacts there now that it is part of L3-Com, in Philly. As far as I know, they dropped support for every product that used that terminal, as well.

"pfjw@aol.com" <pfjw@aol.com>: Mar 27 03:58PM -0700 On Sunday, March 27, 2016 at 4:57:07 PM UTC-4, Michael Terrell wrote: > longer have any contacts there now that it is part of L3-Com, in Philly. > As far as I know, they dropped support for every product that used that > terminal, as well.   Send them to Fluke. Betcha you will be pleasantly surprised.   Peter Wieck Melrose Park, PA

John Robertson <spam@flippers.com>: Mar 27 04:35PM -0700 > Just keep this in mind.   > Peter Wieck > Melrose Park, PA   Lifetime by Fluke is defined as seven years after they stop production of the device:   http://en-us.fluke.com/support/warranties/   My 1980s vintage Fluke test gear 9100s, 9010s, etc., is long past their lifetime warranty.   John ;-#)#   -- (Please post followups or tech inquiries to the USENET newsgroup) John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9 (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games) www.flippers.com "Old pinballers never die, they just flip out."

Cydrome Leader <presence@MUNGEpanix.com>: Mar 28 03:48PM > RF/AF Signal Injector > Micro Maglite > 3D Maglite (AKA "Persuader")   Be extra careful with the maglights. Leaked battery swell up and the juice that comes out will corrode the aluminum and constrict around the battery. It can be impossible to get the batteries out. I had a Kel-Lite destroyed that way. Somebody on usenet suggested wrapping the cells in saran wrap so if they leak you can just slide the whole mess out.

"dangerous dan" <dangerous@dan.com>: Mar 27 05:39PM -0500 While looking around the storage building, I found an old 12 volt VCR, dot matrix printer, wiring harness for an old GE classic 2 mobile phone, from before cell phones existed. This stuff was considered high tech. Many years ago I'd be on location in the oil field, watching TV and videos, talking on the mobile phone.   I had to manually switch towers on the phone, depending on what area I was in.   Now on my smart phone I can watch videos, make phone calls, listen to the radio, surf the internet. It holds 7 gigs of music, and much more in videos. This one device can do so many things it took many other things to do.   In the house I've shrink wrapped a turntable, amplifier, another VCR, two old cband satellite receivers. There are at least a dozen VCR tapes. I don't know what I'll ever do with these things.   It makes me a little sad and nostalgic.   In twenty years I wonder what changes have made today's high tech obsolete?

jurb6006@gmail.com: Mar 28 03:09AM -0700 I kinda hope you don't have a CCW...   It is nice to have old things, but not to shrink wrap them.

"dangerous dan" <dangerous@dan.com>: Mar 28 07:31AM -0500 > I kinda hope you don't have a CCW... > It is nice to have old things, but not to shrink wrap them.   CCW? What does that stand for?   http://acronyms.thefreedictionary.com/CCW

MJC <gravity@mjcoon.plus.com>: Mar 28 02:00PM +0100 In article <mLadnQ6HccyMuWTLnZ2dnUU7-KvNnZ2d@giganews.com>, dangerous@dan.com says... > > It is nice to have old things, but not to shrink wrap them.   > CCW? What does that stand for?   > http://acronyms.thefreedictionary.com/CCW   Counterclockwise (widdershins) was at the top of my interpretations too...   Mike.

John Larkin <jjlarkin@highlandtechnology.com>: Mar 27 10:20AM -0700 On Sat, 26 Mar 2016 19:56:12 +0000 (UTC), Andre Majorel >> a soldering iron tip.   >News to me. In what way are multi-layer ceramic caps and >soldering irons incompatible ?   Not a bit.     --   John Larkin Highland Technology, Inc   lunatic fringe electronics

Jon Elson <elson@pico-systems.com>: Mar 27 10:45PM -0500 Andre Majorel wrote:   >> a soldering iron tip.   > News to me. In what way are multi-layer ceramic caps and > soldering irons incompatible ?   Really, before I got my pick and place machine, I hand-soldered about 25,000 .1uF 0805 capacitors. NEVER ONCE had a bad one. I still hand-solder a fair number of low production boards and prototypes, and have never seen a problem with MLCCs.   Jon

DaveC <not@home.cow>: Mar 27 06:19PM -0700 > 1I have a customer who does SMT repair work and I recently had him help me. I > watched him replace an 8 pin SOT for me. He had a dual lens machine like > something you might see on CSI.     Can you ask him what the make and model of his CSI machine is?

"Michael A. Terrell" <mike.terrell@earthlink.net>: Mar 27 04:40PM -0400 > Had some boards at work with 'lytic caps leaking acid. SWMBO said no way bringing them home. Company bought a dishwasher explicitly for electronics cleaning and it works very well. I use a small amount of detergent, no active drying in the dishwasher but we also have a commercial food dehydrator for 'baking' tapes. 17 hours at 125F makes the boards look and work like new again.     We used a citrus based solvent in an industrial circuit board washer at the Microdyne plant in Ocala, Florida. I don't remember the brand, but it was a modified restaurant type dishwasher that sat on top of a stainless steel tank that held the solvent. The modifications were that tank, and an additional pump to circulate the solvent between the rinse stages. That cut the cleaning costs, and also trapped any parts that came off of new boards due to problems in the reflow oven. It had over a dozen solid state relays added, for the modified wash cycle.     Most of those early Delco solid state radios were a breeze to fix. Most spent less than 10 minutes on the bench, since the biggest failures in the '70s & '80s were open RF/IF transistors, or a shorted output transistor. They failed so often that the radio bench had its own inventory of parts right above the test equipment. It often took longer to do the paperwork than the actual repairs. :)   A curved hemostat, and clipping the leads to different lengths let you replace the RF transistors without removing the circuit board from the tuner. That trick alone, cut about 15 minutes from each repair. The first shop would remove the board, and quite often they would break the tabs off the coils and then they would wait for a new tuner to be ordered.

"Michael A. Terrell" <mike.terrell@earthlink.net>: Mar 27 04:41PM -0400 > I have alot of music on reel to reel. some of the oxide comes off of some of these. I know that their days are numbered. Can I save them? thanks Lenny   > What' the deal on baking tapess     That depends on the backing used. Acetate requires a different method than mylar.

DaveC <not@home.cow>: Mar 27 03:04PM -0700 > I have alot of music on reel to reel. some of the oxide comes off of some of > these. I know that their days are numbered. Can I save them? thanks Lenny   > What' the deal on baking tapess     Not nice to hijack a thread.   You're likely to get a greater response if you don't Reply to an existing message. Create a New message and add your own Subject.

"Ian Field" <gangprobing.alien@ntlworld.com>: Mar 27 10:11PM +0100 "Andy Burns" <feb2017-usenet@adslpipe.co.uk> wrote in message news:dloc6qFt296U1@mid.individual.net...   >> the model number has pretty much rubbed away. >> Anyone know of a gallery of such pictures?   > http://www.lg.com/uk/discontinued-microwave-ovens   Thanks - there was one looked almost similar, but the model number couldn't match what little I could make out from the label on the back.

"Michael A. Terrell" <mike.terrell@earthlink.net>: Mar 27 04:46PM -0400 Paul Drahn wrote:   > Interesting, but missing most amateur radio magazines.     www.archive.org has plenty of them. I have Byte, 73, and several other radio and computer collections that I downloaded from there, in PDF format.   They are also in the process of scanning and posting 10,000+ test equipment operating and service manuals from the now closed Manuals Plus warehouse.

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