Welcome Guest! Be sure you know and follow the Phorum Rules before posting. Thank you and Enjoy! (January 12) x

Thread Closed
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

A Zenith 8G005YT restore
#36

I'd crank up the variac a bit till I got close to 10v on the filament string (at the 200mfd cap). I trust the audio stages are working ok? If so then try injecting a 455kc signal though a small cap (200mmfd-.01mfd not critical) at pin 2 of the 1LN5 if ok then pin 6 if ok when pin 2 of the 1LC6 then pin 6. With the generator on pin 6 you can align the IF transformers.

Do your self a favor and only use the digital meter for ohms measures.Get a VOM or if you are going to be measuring hi impedance circuits a VTVM. Digital meters can't deal well with any sort of voltage with signal on them.I think what happens is some of the semiconductors act as diodes and rectify the signal portion of the voltage and it comes up with a goofy reading. There ok if it's just voltage  like right out of the power supply or cathode and screen grid circuit but plate and control grid circuits I don't trust them. Once I was working on the TV set, measured some voltages and they where no where near what they should be. Was thinking this set is all kinda screwed up. The next few days I was scratching my head tiring to unlock this puzzle. Left my Beckman 310 meter somewhere so I grab the Simpson 610 ('50s analog meter)and the reading were much closer to what they should be.

GL
Terry


Messages In This Thread
A Zenith 8G005YT restore - by klondike98 - 05-29-2016, 10:07 PM
RE: A Zenith 8G005YT restore - by morzh - 05-29-2016, 10:23 PM
RE: A Zenith 8G005YT restore - by Eliot Ness - 05-30-2016, 07:07 AM
RE: A Zenith 8G005YT restore - by klondike98 - 05-30-2016, 07:53 AM
RE: A Zenith 8G005YT restore - by Jayce - 05-31-2016, 10:24 PM
RE: A Zenith 8G005YT restore - by OldRestorer - 06-01-2016, 11:33 AM
RE: A Zenith 8G005YT restore - by Joe Rossi - 06-01-2016, 07:41 PM
RE: A Zenith 8G005YT restore - by klondike98 - 06-01-2016, 07:57 PM
RE: A Zenith 8G005YT restore - by klondike98 - 06-02-2016, 12:20 PM
RE: A Zenith 8G005YT restore - by klondike98 - 06-02-2016, 06:43 PM
RE: A Zenith 8G005YT restore - by sam - 06-02-2016, 07:34 PM
RE: A Zenith 8G005YT restore - by OldRestorer - 06-03-2016, 07:55 AM
RE: A Zenith 8G005YT restore - by Paul Philco322 - 06-04-2016, 01:53 PM
RE: A Zenith 8G005YT restore - by klondike98 - 06-04-2016, 02:13 PM
RE: A Zenith 8G005YT restore - by Radioroslyn - 06-04-2016, 02:33 PM
RE: A Zenith 8G005YT restore - by klondike98 - 06-05-2016, 08:55 PM
RE: A Zenith 8G005YT restore - by morzh - 06-06-2016, 08:36 PM
RE: A Zenith 8G005YT restore - by klondike98 - 06-06-2016, 08:54 PM
RE: A Zenith 8G005YT restore - by sam - 06-06-2016, 10:15 PM
RE: A Zenith 8G005YT restore - by morzh - 06-06-2016, 10:21 PM
RE: A Zenith 8G005YT restore - by Radioroslyn - 06-07-2016, 08:01 AM
RE: A Zenith 8G005YT restore - by klondike98 - 06-07-2016, 09:25 AM
RE: A Zenith 8G005YT restore - by morzh - 06-07-2016, 12:01 PM
RE: A Zenith 8G005YT restore - by klondike98 - 06-12-2016, 10:38 AM
RE: A Zenith 8G005YT restore - by sam - 06-12-2016, 04:15 PM
RE: A Zenith 8G005YT restore - by klondike98 - 06-16-2016, 10:27 AM
RE: A Zenith 8G005YT restore - by morzh - 06-16-2016, 11:00 AM
RE: A Zenith 8G005YT restore - by klondike98 - 06-19-2016, 10:04 PM
RE: A Zenith 8G005YT restore - by Radioroslyn - 06-20-2016, 07:58 AM
RE: A Zenith 8G005YT restore - by klondike98 - 06-20-2016, 09:09 AM
RE: A Zenith 8G005YT restore - by klondike98 - 06-21-2016, 05:10 PM
RE: A Zenith 8G005YT restore - by klondike98 - 06-23-2016, 03:20 PM
RE: A Zenith 8G005YT restore - by klondike98 - 06-28-2016, 05:15 PM
RE: A Zenith 8G005YT restore - by Radioroslyn - 07-06-2016, 09:14 AM
RE: A Zenith 8G005YT restore - by klondike98 - 07-06-2016, 10:50 AM
RE: A Zenith 8G005YT restore - by klondike98 - 07-07-2016, 10:43 AM
RE: A Zenith 8G005YT restore - by Radioroslyn - 07-07-2016, 02:23 PM
RE: A Zenith 8G005YT restore - by klondike98 - 07-07-2016, 07:26 PM
RE: A Zenith 8G005YT restore - by klondike98 - 07-14-2016, 12:02 PM
RE: A Zenith 8G005YT restore - by Radioroslyn - 07-14-2016, 01:44 PM
RE: A Zenith 8G005YT restore - by Radioroslyn - 07-14-2016, 02:00 PM
RE: A Zenith 8G005YT restore - by klondike98 - 07-14-2016, 02:12 PM
RE: A Zenith 8G005YT restore - by Radioroslyn - 07-14-2016, 02:33 PM
RE: A Zenith 8G005YT restore - by klondike98 - 07-14-2016, 04:58 PM
RE: A Zenith 8G005YT restore - by Radioroslyn - 07-14-2016, 05:49 PM
RE: A Zenith 8G005YT restore - by klondike98 - 07-14-2016, 08:59 PM
RE: A Zenith 8G005YT restore - by klondike98 - 07-16-2016, 09:46 AM
RE: A Zenith 8G005YT restore - by klondike98 - 07-16-2016, 01:02 PM
RE: A Zenith 8G005YT restore - by Radioroslyn - 07-16-2016, 03:40 PM
RE: A Zenith 8G005YT restore - by klondike98 - 07-17-2016, 09:11 AM
RE: A Zenith 8G005YT restore - by Radioroslyn - 07-17-2016, 10:03 AM
RE: A Zenith 8G005YT restore - by klondike98 - 07-17-2016, 10:33 AM
RE: A Zenith 8G005YT restore - by Radioroslyn - 07-17-2016, 10:36 AM
RE: A Zenith 8G005YT restore - by klondike98 - 07-17-2016, 10:37 AM
RE: A Zenith 8G005YT restore - by Radioroslyn - 07-17-2016, 11:06 AM
RE: A Zenith 8G005YT restore - by klondike98 - 07-17-2016, 11:49 AM
RE: A Zenith 8G005YT restore - by Phlogiston - 07-17-2016, 03:06 PM
RE: A Zenith 8G005YT restore - by klondike98 - 07-17-2016, 03:49 PM
RE: A Zenith 8G005YT restore - by klondike98 - 07-20-2016, 06:38 PM
RE: A Zenith 8G005YT restore - by Phlogiston - 07-20-2016, 08:29 PM
RE: A Zenith 8G005YT restore - by klondike98 - 08-30-2016, 04:13 PM
RE: A Zenith 8G005YT restore - by Radioroslyn - 08-30-2016, 08:28 PM
RE: A Zenith 8G005YT restore - by klondike98 - 08-30-2016, 09:03 PM
RE: A Zenith 8G005YT restore - by Radioroslyn - 08-30-2016, 11:07 PM
RE: A Zenith 8G005YT restore - by klondike98 - 08-31-2016, 08:51 AM
RE: A Zenith 8G005YT restore - by klondike98 - 09-10-2016, 04:39 PM
RE: A Zenith 8G005YT restore - by klondike98 - 09-22-2016, 03:04 PM
RE: A Zenith 8G005YT restore - by sam - 09-22-2016, 07:12 PM
RE: A Zenith 8G005YT restore - by Eliot Ness - 09-26-2016, 04:28 PM
RE: A Zenith 8G005YT restore - by Paul Philco322 - 10-10-2016, 03:26 PM
RE: A Zenith 8G005YT restore - by klondike98 - 10-10-2016, 05:15 PM
RE: A Zenith 8G005YT restore - by Radioroslyn - 10-10-2016, 07:42 PM
RE: A Zenith 8G005YT restore - by KCMike - 10-10-2016, 07:50 PM
RE: A Zenith 8G005YT restore - by klondike98 - 10-10-2016, 08:55 PM
RE: A Zenith 8G005YT restore - by klondike98 - 11-04-2018, 08:18 AM
RE: A Zenith 8G005YT restore - by morzh - 11-04-2018, 12:21 PM
RE: A Zenith 8G005YT restore - by klondike98 - 11-04-2018, 01:00 PM
RE: A Zenith 8G005YT restore - by morzh - 11-04-2018, 01:37 PM
RE: A Zenith 8G005YT restore - by MrFixr55 - 04-04-2023, 08:19 AM
RE: A Zenith 8G005YT restore - by morzh - 04-04-2023, 09:42 AM
RE: A Zenith 8G005YT restore - by MrFixr55 - 04-05-2023, 08:11 AM
RE: A Zenith 8G005YT restore - by radiorich - 04-06-2023, 12:36 AM
RE: A Zenith 8G005YT restore - by morzh - 04-06-2023, 12:57 PM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Philco newbie with P-1891-WA console questions
Hello Jeff , Far as the Electrolytic capacitors go here is a list of parts. that will work . I like using Nichicon and...radiorich — 09:50 PM
Philco newbie with P-1891-WA console questions
Well, I've been stumped at trying to get the first of 11 electrolytic capacitors. I got a schematic and have a list of t...Jeffcon — 07:54 PM
Model 80 Antenna Issue?
Thanks Gary and Rod.  I also found an article in the Philco Repair Bench under Service Hints and Tips, about installi...Hamilton — 12:32 PM
Model 80 Antenna Issue?
Hello Hamilton, here is a little information found in our Philco Radio Library at the bottom of the Home page. Hope it ...GarySP — 11:28 AM
Model 80 Antenna Issue?
I did as you suggested and touching the middle of the volume control did nothing so the coil has to be rewound. Any idea...Hamilton — 10:19 AM
1949 Motorola 5A9M
This would be the second portable in the "other radios" forum where I have a similar one in my collection. I h...Arran — 12:41 AM
Looking for any info: 1977 Ford-Philco Console Hi-Fi Turntable and Radio
Hi PittsburgTost. The record changer looks like a Garrard or BSR (Likely Garrard). The spindles just pull out and pu...MrFixr55 — 11:57 PM
Looking for any info: 1977 Ford-Philco Console Hi-Fi Turntable and Radio
Hello PittsburghToast , Welcome aboard and it looks like gary may have something for you ! now if I dig through my se...radiorich — 11:35 PM
Model 80 Antenna Issue?
You are kind of on the right path. You can touch the grid cap of the Detector/Oscillator 36 tube. I'm expecting a respon...RodB — 08:48 PM
Looking for any info: 1977 Ford-Philco Console Hi-Fi Turntable and Radio
Welcome to the Phorum, PittsburghToast!  I found an old thread that my interest you regarding the quality and worth of P...GarySP — 08:48 PM

[-]
Who's Online
There are currently no members online.

>