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

model 16 code 125
#32

OK Terry (and anyone else who is better at this than I am), hang with me on this...

I have the "new" power transformer installed from the model 16 parts chassis.  I'm getting a 3 to 4 amp current draw and the sound becoming somewhat garbled as the set plays a few minutes. One of the 42 audio output's (the one closest to the outside of the chassis) gets a lot hotter and brighter than the one right next to it. In checking voltages, on both 42 audio output tubes, P to K I'm getting 288 / 300 volts and it should be 190. Way too high. The 42 driver tube, which should also read 190, is low. It reads 160 P to K.

In trying to isolate where the draw is coming from, I removed the rectifier tube and brought it up to 120VAC on the variac. Of course I get no draw. Zero.

Then I reinstalled the rectifier and removed both 42 audio output tubes. Again at 120 VAC I have only 1 amp of AC draw.

With only one #42 audio output tube in (the inside socket), at 120 VAC I get 2 amps draw. Switching this #42 to the outside socket (the one that was running hot), I'm back to 3 amps draw.

Leaving both audio output tubes in, and just removing the #42 driver tube, I'm pushing 4 amps draw at 120 VAC.

I'm probably confusing you as to why I'm wasting my time or having you shake your head in bewilderment right about now Icon_lol

But I'm trying to take a logical approach to try to isolate the area where the draw first starts occurring. If, based on what I'm finding, you have any thoughts or ideas as to where to look first (the link to the schematic is on page one of this thread), I would be most deeply appreciative. I checked all of my solder joints and did not find anything amiss.

Greg V.
West Bend, WI
Member WARCI.org


Messages In This Thread
model 16 code 125 - by NostalgiaRadioTime - 09-04-2016, 09:04 PM
RE: model 16 code 125 - by morzh - 09-04-2016, 10:16 PM
RE: model 16 code 125 - by Radioroslyn - 09-04-2016, 11:23 PM
RE: model 16 code 125 - by NostalgiaRadioTime - 09-05-2016, 12:27 AM
RE: model 16 code 125 - by NostalgiaRadioTime - 09-06-2016, 07:13 PM
RE: model 16 code 125 - by Radioroslyn - 09-06-2016, 09:38 PM
RE: model 16 code 125 - by NostalgiaRadioTime - 09-06-2016, 10:49 PM
RE: model 16 code 125 - by NostalgiaRadioTime - 09-07-2016, 09:59 PM
RE: model 16 code 125 - by Steve Davis - 09-07-2016, 11:06 PM
RE: model 16 code 125 - by Radioroslyn - 09-07-2016, 11:17 PM
RE: model 16 code 125 - by NostalgiaRadioTime - 09-08-2016, 01:31 AM
RE: model 16 code 125 - by Arran - 09-08-2016, 05:05 AM
RE: model 16 code 125 - by NostalgiaRadioTime - 09-08-2016, 11:14 PM
RE: model 16 code 125 - by Arran - 09-09-2016, 03:36 AM
RE: model 16 code 125 - by NostalgiaRadioTime - 09-09-2016, 10:25 AM
RE: model 16 code 125 - by Arran - 09-10-2016, 11:51 PM
RE: model 16 code 125 - by Kenneth F. Besso Jr. - 09-09-2016, 05:10 PM
RE: model 16 code 125 - by Radioroslyn - 09-09-2016, 07:50 PM
RE: model 16 code 125 - by NostalgiaRadioTime - 09-11-2016, 01:27 AM
RE: model 16 code 125 - by Arran - 09-13-2016, 04:08 AM
RE: model 16 code 125 - by NostalgiaRadioTime - 09-13-2016, 10:31 PM
RE: model 16 code 125 - by NostalgiaRadioTime - 09-18-2016, 03:38 PM
RE: model 16 code 125 - by Radioroslyn - 09-18-2016, 05:05 PM
RE: model 16 code 125 - by NostalgiaRadioTime - 09-18-2016, 05:32 PM
RE: model 16 code 125 - by Radioroslyn - 09-18-2016, 07:42 PM
RE: model 16 code 125 - by morzh - 09-18-2016, 09:30 PM
RE: model 16 code 125 - by NostalgiaRadioTime - 09-18-2016, 10:34 PM
RE: model 16 code 125 - by Ron Ramirez - 09-20-2016, 09:48 AM
RE: model 16 code 125 - by NostalgiaRadioTime - 09-19-2016, 10:33 PM
RE: model 16 code 125 - by Radioroslyn - 09-19-2016, 11:09 PM
RE: model 16 code 125 - by NostalgiaRadioTime - 09-20-2016, 07:14 PM
RE: model 16 code 125 - by NostalgiaRadioTime - 09-20-2016, 10:35 PM
RE: model 16 code 125 - by Radioroslyn - 09-20-2016, 11:14 PM
RE: model 16 code 125 - by NostalgiaRadioTime - 09-20-2016, 11:34 PM
RE: model 16 code 125 - by Radioroslyn - 09-21-2016, 04:59 AM
RE: model 16 code 125 - by NostalgiaRadioTime - 09-22-2016, 10:38 PM
RE: model 16 code 125 - by Radioroslyn - 09-23-2016, 01:01 AM
RE: model 16 code 125 - by Ron Ramirez - 09-23-2016, 06:01 AM
RE: model 16 code 125 - by Steve Davis - 09-23-2016, 08:54 AM
RE: model 16 code 125 - by Kenneth F. Besso Jr. - 09-23-2016, 05:00 PM
RE: model 16 code 125 - by Radioroslyn - 09-23-2016, 05:52 PM
RE: model 16 code 125 - by Kenneth F. Besso Jr. - 09-23-2016, 08:26 PM
RE: model 16 code 125 - by Ron Ramirez - 09-24-2016, 12:36 AM
RE: model 16 code 125 - by NostalgiaRadioTime - 09-26-2016, 06:47 PM
RE: model 16 code 125 - by NostalgiaRadioTime - 09-27-2016, 10:35 PM
RE: model 16 code 125 - by morzh - 09-28-2016, 11:30 AM



Users browsing this thread: 3 Guest(s)
[-]
Recent Posts
Model 70 Cabinet Trim
musar , Well if you have any more questions feel free to post away . Sincerely Richardradiorich — 08:56 PM
Model 70 Cabinet Trim
Although I have not made any cabinets or cabinet parts for a couple of years, I still have some parts left over, includi...Steve Davis — 06:26 PM
philcorepairbench.com - shadow-meter
Thanks Ron.fenbach — 02:43 PM
Model 70 Cabinet Trim
Thank you, Gary. Before making my original post, I had clicked on "Steve Davis Cabinets" only to find that it...musar — 02:25 PM
philco predicta
Welcome to the Phorum, cgl18! I am not your resource for television repair, but lots of friendly help is available here...GarySP — 02:12 PM
Model 70 Cabinet Trim
Welcome to the Phorum, musar! You can send Steve Davis a private message (PM). The site is at the top of the Home page...GarySP — 02:09 PM
Model 70 Cabinet Trim
How do I contact him? The only contact information for him I could find when searching online was a telephone number th...musar — 10:38 AM
philco predicta
Hello, good afternoon, I would like to ask what the possible problem could be if I don't have an image on the screen. I ...cgl18 — 10:19 AM
Philco model 38 code 121 not receiving signal.
So one last question before I finish this radio. Regarding the speaker and output transformer. I salvaged the original o...Stormlord5500 — 09:31 AM
462ron
It’s on the bottom of the homepage of our Philcoradio.com homepage! Ron462ron — 07:20 AM

[-]
Who's Online
There are currently 553 online users. [Complete List]
» 1 Member(s) | 552 Guest(s)
Avatar

>