Welcome Guest! Be sure you know and follow the Phorum Rules before posting. Thank you and Enjoy! (January 12, 2025) x

Thread Closed

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: 2 Guest(s)
[-]
Recent Posts
Plug Voltages Needed For A 1943 CRV-20130 Power Supply
That looks a lot like an aircraft connector of some kind, even if it's a U.S.N power supply. I have a book somewhere abo...Arran — 02:56 AM
Plug Voltages Needed For A 1943 CRV-20130 Power Supply
hello david, I have a similar generator in my collection that features a cast iron, single-cylinder Briggs & Stratt...radiorich — 01:00 AM
under chassis parts locator diagram for 1938 Zenith 9s262
Has anyone gone to the trouble of creating an under chassis parts locator image?  Yes, I can identify components by foll...bobloney — 08:57 PM
Plug Voltages Needed For A 1943 CRV-20130 Power Supply
Try looking at this site the book mark is for a old generator that I was given. David    https://radionerds.com/index.ph...David — 08:36 PM
Plug Voltages Needed For A 1943 CRV-20130 Power Supply
Hello Everyone, I am looking for voltage identification for all the pin positions on the socket of a CRV-20130 power su...Tonym4704 — 08:16 PM
Philco P45-6365 Universal Transformer Instruction Manual
Can anyone guide me to where this may be found?GRG — 03:00 PM
54C Complete Teardown/Rebuild
I don't think that I have encountered a 12Z3 before, curious how it uses one of those but includes a #43, which is a 25 ...Arran — 02:17 PM
HiFi (Chifi) tube amp build - but my own design.
It's the other forum. I'm also in DIY, but mostly read there. Honestly, I kinda jumped into this without much thought to...TV MAN — 10:43 AM
Philco 71 Code 125
Hello,  I am in need of a schematic for this radio. Mine has the three separate circular tube shields and a shadow me...dconant — 08:06 AM
Stromberg Carlson 1500 Squeal
And life just keeps getting more complicated.dconant — 07:57 AM

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

>