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

Thread Closed

Philco 91 Restore Code ??
#7

I have changed the title of this thread from Philco 91 Schematic.

I have gone through most of the cap replacements. I am working on the replacement of the E caps and wiring of the output stage. There is a capacitor (#47) in the plate circuit of the output tubes. Schematic says it is a .001. What I think is the cap is a part mounted to the back of the chassis. It looks like compensating capacitor but without the adjustment screw. Is there some reason why it is not just a plain paper cap or one in a bakelite block? 

Something seriously must have have happened to this radio as the speaker field coil and output transformer are open and the voice coil is pushed way out therefore damaging the spider. The speaker is useless and I will be using a permanent magnet speaker and Hammond output transformer. Also just about every resistor is way out of tolerance and the canedohm resistor has an open section (2-3).


Attached Files Image(s)
   


Messages In This Thread
Philco 91 Restore Code ?? - by dconant - 10-12-2024, 06:45 PM
RE: Philco 91 Schematic - by RodB - 10-13-2024, 09:10 AM
RE: Philco 91 Schematic - by dconant - 10-13-2024, 09:48 AM
RE: Philco 91 Schematic - by dconant - 02-11-2025, 07:12 PM
RE: Philco 91 Schematic - by RodB - 02-11-2025, 09:36 PM
RE: Philco 91 Schematic - by dconant - 02-12-2025, 09:34 AM
RE: Philco 91 Restore Code ?? - by dconant - 02-14-2025, 01:26 PM
RE: Philco 91 Restore Code ?? - by morzh - 02-14-2025, 01:45 PM
RE: Philco 91 Restore Code ?? - by dconant - 02-14-2025, 02:32 PM
RE: Philco 91 Restore Code ?? - by morzh - 02-14-2025, 03:13 PM
RE: Philco 91 Restore Code ?? - by dconant - 02-14-2025, 04:49 PM
RE: Philco 91 Restore Code ?? - by RodB - 02-14-2025, 05:21 PM
RE: Philco 91 Restore Code ?? - by morzh - 02-14-2025, 05:46 PM
RE: Philco 91 Restore Code ?? - by dconant - 02-15-2025, 01:30 PM
462ron - by 462ron - 02-16-2025, 08:49 AM
RE: Philco 91 Restore Code ?? - by dconant - 02-16-2025, 09:21 AM
462ron - by 462ron - 02-16-2025, 09:39 AM
RE: Philco 91 Restore Code ?? - by morzh - 02-16-2025, 12:55 PM
RE: Philco 91 Restore Code ?? - by dconant - 02-16-2025, 01:38 PM
RE: Philco 91 Restore Code ?? - by morzh - 02-16-2025, 01:44 PM
RE: Philco 91 Restore Code ?? - by dconant - 02-16-2025, 02:28 PM
RE: Philco 91 Restore Code ?? - by dconant - 02-16-2025, 02:32 PM
RE: Philco 91 Restore Code ?? - by morzh - 02-16-2025, 02:38 PM
RE: Philco 91 Restore Code ?? - by dconant - 02-16-2025, 03:53 PM
RE: Philco 91 Restore Code ?? - by radiorich - 02-16-2025, 05:04 PM
RE: Philco 91 Restore Code ?? - by morzh - 02-16-2025, 05:45 PM
RE: Philco 91 Restore Code ?? - by dconant - 02-16-2025, 05:52 PM
RE: Philco 91 Restore Code ?? - by RodB - 02-16-2025, 07:52 PM
RE: Philco 91 Restore Code ?? - by morzh - 02-16-2025, 08:09 PM
RE: Philco 91 Restore Code ?? - by MrFixr55 - 02-16-2025, 08:35 PM
RE: Philco 91 Restore Code ?? - by dconant - 02-17-2025, 09:15 AM
RE: Philco 91 Restore Code ?? - by dconant - 02-18-2025, 10:47 AM
RE: Philco 91 Restore Code ?? - by RodB - 02-18-2025, 01:51 PM
RE: Philco 91 Restore Code ?? - by dconant - 02-18-2025, 02:29 PM
RE: Philco 91 Restore Code ?? - by MrFixr55 - 02-18-2025, 03:04 PM
RE: Philco 91 Restore Code ?? - by RodB - 02-18-2025, 05:54 PM
RE: Philco 91 Restore Code ?? - by dconant - 02-18-2025, 06:36 PM
RE: Philco 91 Restore Code ?? - by MrFixr55 - 02-18-2025, 08:09 PM
RE: Philco 91 Restore Code ?? - by dconant - 02-19-2025, 09:21 AM
RE: Philco 91 Restore Code ?? - by morzh - 02-19-2025, 09:59 AM
RE: Philco 91 Restore Code ?? - by dconant - 02-19-2025, 10:17 AM
RE: Philco 91 Restore Code ?? - by dconant - 02-19-2025, 10:55 AM
RE: Philco 91 Restore Code ?? - by dconant - 02-19-2025, 12:38 PM
RE: Philco 91 Restore Code ?? - by morzh - 02-19-2025, 01:31 PM
RE: Philco 91 Restore Code ?? - by dconant - 02-19-2025, 01:37 PM
RE: Philco 91 Restore Code ?? - by morzh - 02-19-2025, 03:59 PM
RE: Philco 91 Restore Code ?? - by dconant - 02-19-2025, 04:20 PM
RE: Philco 91 Restore Code ?? - by dconant - 02-25-2025, 01:01 PM
RE: Philco 91 Restore Code ?? - by morzh - 02-25-2025, 02:49 PM
RE: Philco 91 Restore Code ?? - by dconant - 02-25-2025, 02:56 PM
RE: Philco 91 Restore Code ?? - by morzh - 02-25-2025, 02:58 PM
RE: Philco 91 Restore Code ?? - by dconant - 02-25-2025, 04:46 PM



Users browsing this thread: 2 Guest(s)
[-]
Recent Posts
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
54C Complete Teardown/Rebuild
Richard, Had grabbed it already but thank you just the same.  I find myself wanting to find some way to block out the...glyphmon — 12:03 AM
54C Complete Teardown/Rebuild
Hello roy, here is a link to the schematic . Sincerely Richardradiorich — 11:54 PM
54C Complete Teardown/Rebuild
Richard, The Silvertone 2014 also is a transformerless set, so I am incorporating a 1:1 600 ohm audio isolation transfo...glyphmon — 11:37 PM
Preliminary work on wife's Silvertone 2014
Did an alignment today which was interesting.  IF alignment went great, almost all was already spot-on.  Adjusting on th...glyphmon — 11:35 PM

[-]
Who's Online
There are currently 1783 online users. [Complete List]
» 2 Member(s) | 1781 Guest(s)
AvatarAvatar

>