1. The PHILCO Phorum
  2. Philco Radio Discussions
  3. Philco Electronic Restoration

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

Thread Closed

Linear Mode
50-925 no FM
Eric Adams
Phorum Expert
*****
Posts: 825
Threads: 113
Joined: Aug 2012
City: The Villages State, Province, Country: Florida
#1

03-31-2015, 10:28 PM
Well, I don't have much hair to begin with, so please help me before I pull out the rest Icon_crazy 

All caps replaced, tubes tested, ant coil checks good, band switch cleaned. AM works great but FM is completely silent. I did some voltage tests and the plates on V1 and V3 should be 95VDC. All I get is 72 volts. I get the same on AM and that works, so I'm lost.

Any ideas where to look next?

http://www.nostalgiaair.org/Resources/703/M0013703.htm

Thanks,
Eric
The Villages, FL
Member: Philco Phorum, ARF, ARCI & Radiomuseum.org

(This post was last modified: 04-01-2015, 02:03 AM by Eric Adams.)
Website Find
« Next Oldest | Next Newest »
Thread Closed


Messages In This Thread
50-925 no FM - by Eric Adams - 03-31-2015, 10:28 PM
RE: 50-925 no FM - by Radioroslyn - 04-01-2015, 06:38 AM
RE: 50-925 no FM - by Eric Adams - 04-01-2015, 11:10 AM
RE: 50-925 no FM - by Radioroslyn - 04-01-2015, 09:01 PM
RE: 50-925 no FM - by David - 04-01-2015, 09:10 PM
RE: 50-925 no FM - by Eric Adams - 04-01-2015, 09:42 PM
RE: 50-925 no FM - by Radioroslyn - 04-01-2015, 10:49 PM



Users browsing this thread: 1 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 2310 online users. [Complete List]
» 1 Member(s) | 2309 Guest(s)
Avatar

>
  1. The PHILCO Phorum
  2. Philco Radio Discussions
  3. Philco Electronic Restoration