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"Michael A. Terrell" <mike.terrell@earthlink.net>: Nov 09 03:25PM -0500 Jon Elson wrote: > wired for cable. Damage to poles can knock connectors partially loose, > allowing a LOT of signal to flow onto the outer sheath. Could be a signal > right on the same frequency as Chan 4.     Digital CATV uses QAM modulation, not ATSC.     -- Never piss off an Engineer!   They don't get mad.   They don't get even.   They go for over unity! ;-)

Pat <pat@nospam.us>: Nov 10 08:08AM -0500 On Wed, 9 Nov 2016 15:25:58 -0500, "Michael A. Terrell" >> allowing a LOT of signal to flow onto the outer sheath. Could be a signal >> right on the same frequency as Chan 4.   > Digital CATV uses QAM modulation, not ATSC.   What is your point? His point was that a leaky cable system with signals on channel 4 could interfere with the OP's over the air channel 4 signal. That is certainly possible even if different modulation schemes are used. (And by channel 4, we mean virtual 4 - RF 30).

Jeff Liebermann <jeffl@cruzio.com>: Nov 10 08:35AM -0800 >channel 4 signal. That is certainly possible even if different >modulation schemes are used. (And by channel 4, we mean virtual 4 - >RF 30).   Besides using different modulation schemes, cable channels are also interleaved with OTA channels to prevent mutual interference (via leakage and ingress). For example, broadcast channel 30 goes from 566-572MHz OTA. The closest CATV channel is channel 81, which goes from 564-570MHz.   Most of the leakage I've seen from CATV systems comes from poor Type-F coax connector installations by home owners and unterminated coax cables. It takes quite a bit of cable leakage to produce interference with an OTA signal, but it might be possible in weak areas and if the OTA TV system uses a pre-amplifier.       -- 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

Jon Elson <jmelson@wustl.edu>: Nov 09 01:49PM -0600 > No. The two that work ohm out at ~10 meg. The two that do not ohm out at > ~20K. So, yes, you are seeing 'resistance' on them. Clearly "these fans" > are not created equal. But, clearly, if it was TRULY a 10 Meg resistor, the fans would not produce any airflow. When you get enough voltage on them, the circuitry turns on and starts drawing current to spin the rotor.   The 20K ones might have a popped component, or just a different control circuit.   Jon

"pfjw@aol.com" <pfjw@aol.com>: Nov 09 06:27PM -0800 On Wednesday, November 9, 2016 at 2:46:10 PM UTC-5, Jon Elson wrote:   > The 20K ones might have a popped component, or just a different control > circuit.   > Jon   You miss the point - no surprise there - what the "protection mode" sees is the initial state of the fan, which is around ~10 megs. Which does not trip it. When it sees 5% of that, it trips. When the fan is running, clearly the protection circuit is OK with what must be a much lower operating (spinning) impedance.   Yes, perhaps a different circuit, no sh*t. Point being, yet again, is that the fans are not created equal. And the point of measuring initial resistance is to be able to separate the ones that might work from the ones that will, clearly, not work without having to test-by-substitution, a not very efficient method.   Peter Wieck Melrose Park, PA

Phil Allison <pallison49@gmail.com>: Nov 09 06:42PM -0800 Nutcase Kook wrote:       > Tried the original again, and that is fine. > Tried a 12V ,.15A one and again protect mode, same sort of start up > current draw as the original, but goes into protect.   ** The above drivel makes no sense whatever.   The switching PSU in the Mark Bass "Parsec" series is unregulated and has no remote shutdown system. The DC supply for the fan is also unregulated and not sensed.   "Protect" mode, when triggered, mutes ( labelled DIS on the schem) the input signal the power amp and detects overtemp or excess current in the output MOSFETS.   The speaker relay operates independently and senses only large DC offsets.   http://bmamps.com/Schematics/Mark_Bass/Mark_Bass_Parsek_Little_Mark_II.pdf       .... Phil

N_Cook <diverse@tcp.co.uk>: Nov 10 11:06AM Enough of this flaffing around, should have been just a change of fan job. Found a "high impedance" 12V ,0.16A fan in a parts mule and that works fine, incidently from a linear ps amp. I'll assume its something to do with the 0.1sec or so full tilt, fan start up function of the control circuit. Instead of initial 2 seconds or so to audibly confirm to the owner that the fan is working, just a short kick start before dropping into low temp speed . But potentially 18V over 12V fan for 0.1sec and perhaps some added monitoring variant somewhere in the SMPS , in this 2013, Mini CMD 121 flavour of mark Bass , different to the only representative Mark Bass schematic that is out there. Anyway no nasty ticking of the SMPS going into protect at switch on and normal running fan noise and increase speed on warming up. At least anyone else coming across this problem has now some clues as to what is going on. Incidently the usual scratched off ident to the SMPS supervisor chip, dicussed and collectively identified previously on this board.

"pfjw@aol.com" <pfjw@aol.com>: Nov 09 06:33PM -0800 On Wednesday, November 9, 2016 at 9:55:58 AM UTC-5, Michael Terrell wrote: > >> Halloween mask? ;-)   > > True enough. Deer are rather stupid and might actually be afraid of Hillary. Whereas a Trump mask would definitely attract them - also any sheep, goats, rabbits and other herd animals in the area. Certainly any such unwilling or unable to think for themselves.   > They apparently think well enough not to vote for Hillary.   Time will tell.   Most of the time cattle, sheep and even chickens will march right up the ramp into the slaughterhouse without any hesitation at all, even with the full visual of their fellow herd companions being shocked, beheaded or otherwise abused directly in front of them. That is the sort of "think well enough of" that we are discussing.   May you live in interesting times, and may all your wishes come true.   Peter Wieck Melrose Park, PA   On some great and glorious day the plain folks of the land will reach their heart's desire at last, and the White House will be adorned by a downright moron.   H.L. Mencken

"Gareth Magennis" <soundserviceleeds@outlook.com>: Nov 09 07:55PM Why can't I find, and why did Eventide use, a 73.3824MHz crystal to drive the Master Clock in the H3000 series?   https://www.eventideaudio.com/products/rackmount/ultra-harmonizer/h3000-series     Cuh.     Gareth.

Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net>: Nov 09 03:20PM -0500 On 11/09/2016 02:55 PM, Gareth Magennis wrote:   > Cuh.   > Gareth.     Well, perhaps coincidentally, it's 65536 * 44.100 kHz * 1.3000 for oversampling. ;)   Cheers   Phil Hobbs   -- Dr Philip C D Hobbs Principal Consultant ElectroOptical Innovations LLC Optics, Electro-optics, Photonics, Analog Electronics   160 North State Road #203 Briarcliff Manor NY 10510   hobbs at electrooptical dot net http://electrooptical.net

Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net>: Nov 09 03:33PM -0500 On 11/09/2016 03:20 PM, Phil Hobbs wrote:   >> Gareth.   > Well, perhaps coincidentally, it's 128 * 44.100 kHz * 1.3000 for > oversampling. ;)     Corrected binary divisor!   Cheers   Phil Hobbs   -- Dr Philip C D Hobbs Principal Consultant ElectroOptical Innovations LLC Optics, Electro-optics, Photonics, Analog Electronics   160 North State Road #203 Briarcliff Manor NY 10510   hobbs at electrooptical dot net http://electrooptical.net

"Gareth Magennis" <soundserviceleeds@outlook.com>: Nov 09 08:52PM "Phil Hobbs" wrote in message news:7uWdndqaKNG2GL7FnZ2dnUU7-VvNnZ2d@supernews.com...   On 11/09/2016 02:55 PM, Gareth Magennis wrote:   > Cuh.   > Gareth.     Well, perhaps coincidentally, it's 65536 * 44.100 kHz * 1.3000 for oversampling. ;)   Cheers   Phil Hobbs               I don't have the Service manual in front of me now, but, yes, 44.1K is one of the derived clocks.   I just can't get the crystal!     Cheers,     Gareth.

"Gareth Magennis" <soundserviceleeds@outlook.com>: Nov 09 09:14PM Manual here.     http://elektrotanya.com/eventide_h3000_ultra-harmonizer.pdf/download.html     Gareth.

Cydrome Leader <presence@MUNGEpanix.com>: Nov 09 05:56PM >> them.   > No. No. No. No. No. No. No. No. No. No. No. No. No. No. No. No. No. No. > What you paid is NEVER an indication of quality.   Yeah, break that light open and find it packed with the finest components, and the best of design coupled with the best of constuction and quality control.   > I can give you hundreds of examples which nullify instantly that idiotic > argument. I've been having this argument for years, with many people, so, > please understand that it's not you that I'm upset with.   Like I said above. I can't wait to see the teardown of the first unit to fail. This should only take a month.     > Sure, price is a SIMPLE way to think about things. > So is warranty.   > But neither is ANY indication whatsoever of quality.   Yup, no indication at all.   > hand, you make quality decisions based on a single nearly meaningless > number, simply because it's easy to do.   > SO I'm confused by your advice.   My advice is simple.   If somebody has LED lighting efficiency boner, and wants to save money buy a new light fixture. Don't retrofit stuff made during the Reagan administration with the most bogus of retrofit kits ever imagined.   The fact that fiet eletric admits that the lights have no regulation and just burn out faster in exactly the place people might install them speaks for itself about the integrity of the product.

Cydrome Leader <presence@MUNGEpanix.com>: Nov 09 05:57PM > carry the Phillips ballasts or can order.   > g. beat > chicago   They used to be made on Western ave by Belmont until 20 or so years ago too. It's sort of amazing the plant never became a superfund site.

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