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

Thread Closed

Philco TPA-1
#44

Tim

as you probably understand we do not know what "farthest spring from the front" and the other spring and the "closest to the speaker" mean in schematic turns.

Please try to speak in schematic terms, and give me measurements relative to GND, whatever spring or contact it might be.

Both device turned on and turned off.

You also want to measure BEFORE the spring contact and AFTER to eliminate oxidizing as a possible reason for bad behaviour.

PS> Meantime if what you told means one battery either loses voltage / gets shorted / the contact is oxidized is true (so far I am surmising) we might have a bad transistor. But again, I am absolutely not sure I understood what you wrote so far.


Messages In This Thread
Philco TPA-1 - by tim1 - 01-16-2014, 01:25 PM
RE: Philco TPA-1 - by morzh - 01-16-2014, 02:29 PM
RE: Philco TPA-1 - by tim1 - 01-16-2014, 02:53 PM
RE: Philco TPA-1 - by morzh - 01-16-2014, 03:14 PM
RE: Philco TPA-1 - by tim1 - 01-16-2014, 03:16 PM
RE: Philco TPA-1 - by morzh - 01-16-2014, 03:22 PM
RE: Philco TPA-1 - by morzh - 01-16-2014, 03:41 PM
RE: Philco TPA-1 - by tim1 - 01-16-2014, 04:57 PM
RE: Philco TPA-1 - by morzh - 01-16-2014, 05:07 PM
RE: Philco TPA-1 - by Ron Ramirez - 01-16-2014, 05:16 PM
RE: Philco TPA-1 - by TV MAN - 01-17-2014, 12:57 PM
RE: Philco TPA-1 - by morzh - 01-17-2014, 01:00 PM
RE: Philco TPA-1 - by tim1 - 01-17-2014, 07:42 PM
RE: Philco TPA-1 - by morzh - 01-17-2014, 08:25 PM
RE: Philco TPA-1 - by tim1 - 01-17-2014, 08:29 PM
RE: Philco TPA-1 - by morzh - 01-17-2014, 08:31 PM
RE: Philco TPA-1 - by TV MAN - 01-17-2014, 10:13 PM
RE: Philco TPA-1 - by tim1 - 01-17-2014, 11:11 PM
RE: Philco TPA-1 - by morzh - 01-17-2014, 11:19 PM
RE: Philco TPA-1 - by tim1 - 01-17-2014, 11:40 PM
RE: Philco TPA-1 - by morzh - 01-17-2014, 11:45 PM
RE: Philco TPA-1 - by tim1 - 01-18-2014, 12:06 AM
RE: Philco TPA-1 - by morzh - 01-18-2014, 12:10 AM
RE: Philco TPA-1 - by tim1 - 01-18-2014, 07:54 PM
RE: Philco TPA-1 - by morzh - 01-18-2014, 08:09 PM
RE: Philco TPA-1 - by morzh - 01-18-2014, 08:14 PM
RE: Philco TPA-1 - by tim1 - 01-18-2014, 08:37 PM
RE: Philco TPA-1 - by morzh - 01-18-2014, 09:15 PM
RE: Philco TPA-1 - by tim1 - 01-19-2014, 07:22 AM
RE: Philco TPA-1 - by morzh - 01-19-2014, 02:37 PM
RE: Philco TPA-1 - by tim1 - 01-19-2014, 08:03 PM
RE: Philco TPA-1 - by morzh - 01-19-2014, 09:56 PM
RE: Philco TPA-1 - by tim1 - 01-19-2014, 10:15 PM
RE: Philco TPA-1 - by morzh - 01-19-2014, 11:54 PM
RE: Philco TPA-1 - by tim1 - 01-20-2014, 03:08 PM
RE: Philco TPA-1 - by morzh - 01-20-2014, 03:23 PM
RE: Philco TPA-1 - by tim1 - 01-20-2014, 07:21 PM
RE: Philco TPA-1 - by morzh - 01-20-2014, 10:21 PM
RE: Philco TPA-1 - by morzh - 01-23-2014, 04:01 PM
RE: Philco TPA-1 - by tim1 - 01-23-2014, 06:03 PM
RE: Philco TPA-1 - by morzh - 01-23-2014, 06:59 PM
RE: Philco TPA-1 - by tim1 - 01-26-2014, 08:39 PM
RE: Philco TPA-1 - by tim1 - 02-03-2014, 11:39 AM
RE: Philco TPA-1 - by morzh - 02-03-2014, 11:48 AM
RE: Philco TPA-1 - by tim1 - 02-03-2014, 03:04 PM
RE: Philco TPA-1 - by morzh - 02-03-2014, 03:26 PM
RE: Philco TPA-1 - by tim1 - 02-04-2014, 06:41 AM
RE: Philco TPA-1 - by morzh - 02-04-2014, 10:42 AM
RE: Philco TPA-1 - by morzh - 02-08-2014, 09:25 PM
RE: Philco TPA-1 - by morzh - 02-09-2014, 09:08 PM
RE: Philco TPA-1 - by morzh - 02-09-2014, 11:21 PM
RE: Philco TPA-1 - by Ron Ramirez - 02-10-2014, 06:32 AM
RE: Philco TPA-1 - by morzh - 02-10-2014, 09:51 AM
RE: Philco TPA-1 - by morzh - 02-17-2014, 06:52 PM
RE: Philco TPA-1 - by tim1 - 02-21-2014, 12:24 AM
RE: Philco TPA-1 - by morzh - 02-21-2014, 10:26 AM
RE: Philco TPA-1 - by tim1 - 02-21-2014, 02:25 PM
RE: Philco TPA-1 - by morzh - 02-21-2014, 02:30 PM
RE: Philco TPA-1 - by PhilcoFordTesla - 10-16-2019, 10:38 PM
RE: Philco TPA-1 - by morzh - 10-16-2019, 10:46 PM
RE: Philco TPA-1 - by PhilcoFordTesla - 10-26-2019, 03:25 AM
RE: Philco TPA-1 - by morzh - 10-26-2019, 05:40 PM
RE: Philco TPA-1 - by PhilcoFordTesla - 10-26-2019, 06:20 PM
RE: Philco TPA-1 - by morzh - 10-26-2019, 07:07 PM
RE: Philco TPA-1 - by PhilcoFordTesla - 10-26-2019, 07:48 PM
RE: Philco TPA-1 - by PhilcoFordTesla - 11-13-2019, 11:40 PM
RE: Philco TPA-1 - by morzh - 11-14-2019, 10:30 AM
RE: Philco TPA-1 - by PhilcoFordTesla - 11-14-2019, 11:59 AM
RE: Philco TPA-1 - by morzh - 11-14-2019, 12:43 PM
RE: Philco TPA-1 - by PhilcoFordTesla - 11-14-2019, 11:59 PM
RE: Philco TPA-1 - by PhilcoFordTesla - 11-15-2019, 12:20 AM
RE: Philco TPA-1 - by PhilcoFordTesla - 11-15-2019, 01:23 AM
RE: Philco TPA-1 - by morzh - 11-15-2019, 11:49 AM
RE: Philco TPA-1 - by PhilcoFordTesla - 11-15-2019, 05:56 PM
RE: Philco TPA-1 - by PhilcoFordTesla - 11-15-2019, 08:04 PM
RE: Philco TPA-1 - by PhilcoFordTesla - 11-15-2019, 09:03 PM
RE: Philco TPA-1 - by PhilcoFordTesla - 11-16-2019, 12:43 AM
RE: Philco TPA-1 - by PhilcoFordTesla - 11-16-2019, 01:21 AM
RE: Philco TPA-1 - by Jake Blake - 11-16-2019, 02:11 AM
RE: Philco TPA-1 - by PhilcoFordTesla - 11-16-2019, 02:15 AM
RE: Philco TPA-1 - by PhilcoFordTesla - 11-16-2019, 08:32 PM
RE: Philco TPA-1 - by PhilcoFordTesla - 06-16-2024, 11:03 PM
RE: Philco TPA-1 - by morzh - 06-17-2024, 09:02 PM
RE: Philco TPA-1 - by PhilcoFordTesla - 06-17-2024, 11:47 PM



Users browsing this thread: 5 Guest(s)
[-]
Recent Posts
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
54C Complete Teardown/Rebuild
Hello Roy, here is this one sincerely Richardradiorich — 12:45 AM

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

>