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writemj@gmail.com: Jan 09 08:07AM -0800 On Wednesday, August 2, 2000 at 3:00:00 AM UTC-4, GHilgenber wrote: > I have a ford ranger and the cassette player has a lot of static the radio > plays fine.I have demagnetizer and cleaning tapes I was thinking of using > acetone on the heads?   Use a cleaning tape or the like . Chemicals and liquids can harm rollers and other plastic / rubber parts . Alcohol will dry out the oils in plastics and rubber , causing them to harden . Acetone will tend to dissolve these materials .

Terry Schwartz <tschw10117@aol.com>: Jan 09 08:12AM -0800 > > plays fine.I have demagnetizer and cleaning tapes I was thinking of using > > acetone on the heads?   > Use a cleaning tape or the like . Chemicals and liquids can harm rollers and other plastic / rubber parts . Alcohol will dry out the oils in plastics and rubber , causing them to harden . Acetone will tend to dissolve these materials .   All those materials are 19 years older than when this topic was initiated.... So yeah, I bet they're dried out.

John-Del <ohger1s@gmail.com>: Jan 08 09:46AM -0800 On Tuesday, January 8, 2019 at 11:09:38 AM UTC-5, Fox's Mercantile wrote: > On 1/8/19 9:19 AM, amdx wrote: > > into my FM transmitter   > And how is that supposed to work with a bunch of AM radios?   You feed the headphone jack of the FM radio into an AM XMTR...   Sheesh Jeff!!

Chuck <ch@dejanews.net>: Jan 08 12:03PM -0600 >Crystal controlled would be better because drift is not good. But then if you just leave it on all the time it will settle in and be stable enough.   >Another thing is to keep the power down, you don't need problems with the FCC. They got a SWAT team, I shit you not. I am not sure what you can get away with, maybe 100mW or 500, something like that. A quick Google didn't yield a straight answer but I would say just make sure the signal doesn't leave the house.   >I know it is absolutely illegal to use any of the FM band, that this when they come and treat you like you're running a meth lab. However there is so much noise on AM that they might never even suspect. You might be better running the "transmitting antenna" through wires to the desired locations. I fit leaves the house, even on your own property that might mean trouble. And we are talking feds here, that means your miracle worker lawyer is no good. I used to live in a city with 50,000 residents in the southern U.S.. There was, and probably still is, a pirate station in the educational FM band. It has been on the air for years and it doesn't interfere with local FM signals. I have sinced moved to a town of 20,000 people in southern MN. Someone started a pirate station playing Tejano music 24 hours a day. Unfortunately their frequency was at 90.3 MHz and the signal bled over onto the local MPR signal at 90.1. I complained to the FCC and within 3 weeks they shut the station down. So it appears that the FCC is more aggressive when the station impinges on legitimate signals.

Fox's Mercantile <jdangus@att.net>: Jan 08 12:22PM -0600 On 1/8/19 11:46 AM, John-Del wrote:   > You feed the headphone jack of the FM radio into an AM XMTR...   > Sheesh Jeff!!   Heh, I keep seeing people totally oblivious to the requirement of an AM transmitter for BCB AM radios.   -- "I am a river to my people." Jeff-1.0 WA6FWi http:foxsmercantile.com

dplatt@coop.radagast.org (Dave Platt): Jan 08 10:37AM -0800 In article <2jo93e5o60lea4jfiqg5vld5l3ooljg2ub@4ax.com>, >the FCC and within 3 weeks they shut the station down. So it appears >that the FCC is more aggressive when the station impinges on >legitimate signals.   "Harmful interference" vs. "unauthorized operation". Both can come with big fines... but, yes, the FCC is somewhat more likely to react when faced with a situation where a legitimate licensed broadcaster is being interfered with. (Commercial licensees have paid $$ for their licenses, and don't like losing market-share/coverage to pirate transmitters).

amdx <nojunk@knology.net>: Jan 08 09:19AM -0600 > I would like to make a small in the house AM radio transmitter,   >so I can > listen to my own music collection of MP3 music on my antique radios.   I do it the other way, I feed antique radio programs from my internet radio into my FM transmitter, so I can listen on my portable radio.   Two of my favorite Old Time Radio Stations,   > http://www.20thcenturyradio.com/     > http://www.oldvalveradio.com/   Stoke up the fire and listen to,   Sherlock Holmes Johnny Dollar Philip Marlowe Dragnet- Features Jack Webb and advertises Fatima cigarettes > https://archive.org/details/Dragnet_OTR/Dragnet_49-06-17_ep003_The_Werewolf.mp3Hall of Fantasy The Bob Hope Show Have Gun Will Travel Escape Bold Venture with Humprey Bogart and Lauren Bacall Tarzan The Whistler Richard Diamond The Lives of Harry Lime Orson Welles does the lead role Broadway Is My Beat Bob & Ray Suspense Box 13 Philo Vance The Lone Ranger Screen Director's Playhouse The Six Shooter Gunsmoke ‎William Conrad did the voice for Matt Dillion Fort Laramie Raymond Burr does the lead role. X Minus One   Mikek

Fox's Mercantile <jdangus@att.net>: Jan 08 10:09AM -0600 On 1/8/19 9:19 AM, amdx wrote: > into my FM transmitter   And how is that supposed to work with a bunch of AM radios?   -- "I am a river to my people." Jeff-1.0 WA6FWi http:foxsmercantile.com

amdx <nojunk@knology.net>: Jan 08 06:10PM -0600 On 1/8/2019 12:22 PM, Fox's Mercantile wrote:   >> Sheesh Jeff!!   > Heh, I keep seeing people totally oblivious to the requirement > of an AM transmitter for BCB AM radios.   I was oblivious to your requirement, you made that clear. I just wanted to let people know what I do, and to make them aware of the old radio programs available over the internet. Listening to Dragnet as I write, on an FM radio!   Mikek   btw, has anyone tried a class E amplifier as an AM transmitter? Base/gate drive is transmit frequency, B+ is the audio. I'll google it.

Fox's Mercantile <jdangus@att.net>: Jan 08 06:49PM -0600 On 1/8/19 6:10 PM, amdx wrote: > btw, has anyone tried a class E amplifier as an AM transmitter? >  Base/gate drive is transmit frequency, B+ is the audio. > I'll google it.   On of the "Impress kids" kit is an AM transmitter. It's 1 MHz TTL crystal oscillator. The Vcc is fed through an audio transformer.   Pretty slick, an AM transmitter with only 2 parts.     -- "I am a river to my people." Jeff-1.0 WA6FWi http:foxsmercantile.com

amdx <nojunk@knology.net>: Jan 08 08:45PM -0600 On 1/8/2019 6:49 PM, Fox's Mercantile wrote: > It's 1 MHz TTL crystal oscillator. > The Vcc is fed through an audio transformer.   > Pretty slick, an AM transmitter with only 2 parts.   Ya, I found some, you do need some DC bias on the secondary of the transformer. See page 21, 2nd page from bottom.> https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=18&ved=2ahUKEwjeiPbN09_fAhVyg-AKHVAeDFEQFjARegQIABAC&url=https%3A%2F%2Fwww.crarc.ampr.org%2Fuploads%2FMain%2FArchives%2FJuly%2520Class-E%2520Transmitters.pdf&usg=AOvVaw2RezBtb1JfwKR236TgSS4v   Here's an AM transmitter with 3 parts. > https://www.youtube.com/watch?v=YNGs-IX_B2s   Mikek

thekmanrocks@gmail.com: Jan 08 08:02PM -0800 Jeff Liebermann wrote: "Try 1650 KHz instead. Kilocycles died 50 years ago."     Any tech worth their salt understands both. They express the same value.

Fox's Mercantile <jdangus@att.net>: Jan 08 10:17PM -0600 > Jeff Liebermann wrote: "Try 1650 KHz instead. Kilocycles died 50 years ago."   > Any tech worth their salt understands both. They > express the same value.   And only the humor impaired see the need to point that out.   -- "I am a river to my people." Jeff-1.0 WA6FWi http:foxsmercantile.com

Jeff Liebermann <jeffl@cruzio.com>: Jan 09 12:08AM -0800 >Jeff Liebermann wrote: "Try 1650 KHz instead. Kilocycles died 50 years ago." >Any tech worth their salt understands both.   Bulk table salt sells for about $100 per metric ton. Methinks I'm worth more than that.   >They express the same value.   Not the way they were originally written. Hz = cycles/second. However, the original comment was "16,500 kc" which is just cycles. No way to know if that's cycles/sec, cycles/minute, cycles/fortnight, or just counting waveform cycles. If he had written "cps", which means cycles/second, I might agree, but not kc.       -- 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

Mike Coon <gravity@mjcoon.plus.com>: Jan 09 02:47PM In article <jn9b3e5cmq5tfl8n1ou31nk9u9gc45ejgd@4ax.com>, jeffl@cruzio.com says... > way to know if that's cycles/sec, cycles/minute, cycles/fortnight, or > just counting waveform cycles. If he had written "cps", which means > cycles/second, I might agree, but not kc.   But at least it was "k" for 1000x, not "K" for 1024x ...   Mike.

thekmanrocks@gmail.com: Jan 08 02:33PM -0800 John-Del:   On a lot of receivers/amps(esp. older ones), 'Tape Out' does mean 'coming from' the tape/cassette deck, and 'Tape In' means what is going out of the receiver/amp to the record deck.   From my own experience.

dansabrservices@yahoo.com: Jan 08 02:36PM -0800 > what is going out of the receiver/amp to > the record deck.   > From my own experience.   You have those backwards. On the receiver, the tape in "comes from" the tape.   The tape out comes from the pre-amp section prior to the volume control.

thekmanrocks@gmail.com: Jan 08 03:07PM -0800 5:36 PMdansabr...@yahoo.com wrote: "You have those backwards. On A RECENT receiver, the tape in "comes from" the tape. The tape out comes from the pre-amp section prior to the volume control. "   See my edit(caps) above.   On older gear, pre-1980, the routing of those ins and outs as I described them stands. How do I know? Because I assumed the same thing you stated above, and got no audio! Once I flipped both RCA pairs around, Voila, everything was fine.

dansabrservices@yahoo.com: Jan 08 04:35PM -0800 > above, and got no audio! Once I > flipped both RCA pairs around, Voila, > everything was fine.   I won't argue your results, but with 35 years of repairing audio gear, I have not seen one yet that has that property. The in/out label on any gear is usually for that particular unit. The same exists on tape machines. There are input and output jacks there as well. The "output" jack on the tape should be activated when the tape is in play mode, thus is an output.

John-Del <ohger1s@gmail.com>: Jan 08 05:00PM -0800 > > flipped both RCA pairs around, Voila, > > everything was fine.   > I won't argue your results, but with 35 years of repairing audio gear, I have not seen one yet that has that property. The in/out label on any gear is usually for that particular unit. The same exists on tape machines. There are input and output jacks there as well. The "output" jack on the tape should be activated when the tape is in play mode, thus is an output.   Same here.   I'm old enough and have seen enough to know I'll never see or know everything, but I've never seen a tape monitor setup where the tape out is an input. I've got 45 years as a professional audio/video tech and have worked on many stereos, and this includes many vintage vacuum tube Scotts, Fishers, Eicos etc. from the 60s through the current HT surround receivers. But I'll never say never.

Terry Schwartz <tschw10117@aol.com>: Jan 08 05:11PM -0800 > what is going out of the receiver/amp to > the record deck.   > From my own experience.   Agreed --- my vintage Sansui receiver works exactly that way.

John-Del <ohger1s@gmail.com>: Jan 09 05:46AM -0800 On Tuesday, January 8, 2019 at 8:11:28 PM UTC-5, Terry Schwartz wrote: > > the record deck.   > > From my own experience.   > Agreed --- my vintage Sansui receiver works exactly that way.     I have a 70s Sansewer receiver in my dungeon, I'll see how that one is configured. But I'm wondering if the tape mon connections are simply labelled "in" and "out", or if they're preceded by "connect to"...

Stu jaxon <stankowalski02@gmail.com>: Jan 08 06:14PM -0800 Hi Group, I'm working a Panasonic TC-P50S2. The tv won't power up and no led blinking codes, I found a surface mounted component that is shorted. the board placement # ZD554 the part #VZPTZ6.2BT well I know it's a ZENER DIODE, it's from the power supply, I did a ton of research trying to find anything on it, and I found nothing no datasheet, can anyone help cross reference this part or tell me it's characteristics.?

Adam <adamg@pobox.comNOSPAM>: Jan 09 04:18AM > no led blinking codes, I found a surface mounted component that is > shorted. the board placement # ZD554 the part #VZPTZ6.2BT well I know > it's a ZENER DIODE, it's from the power supply   It has 6.2 in the part number. According to the schematic, it's across the STBY5V supply bus. I would guess it's a 6.2 volt Zener diode. Something like this: https://www.rohm.com/products/diodes/zener-diodes/standard/ptz6.2b-product   -- Adam

Stu jaxon <stankowalski02@gmail.com>: Jan 09 04:16AM -0800 On Tuesday, January 8, 2019 at 11:18:15 PM UTC-5, Adam wrote: > Something like this: > https://www.rohm.com/products/diodes/zener-diodes/standard/ptz6.2b-product   > -- Adam   Thank You..

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