Posts: 1,199
Threads: 49
Joined: Oct 2017
City: Allendale, MI
All tubes checked, installed, and slowly powered up. Stations all across the dial, though low volume and distorted. At least I had something to work with. I discovered the wiper contact on the treble control had a low resistance short to ground. This caused the bias on the audio driver tube to vary from -14v to ov as I turned the selectivity control. Fixed that and the radio works great... almost. One dead band (1.5-7.6 mHz band). The oscillator dies and there is total silence. Before I reassembled the tuner chassis I had checked all coils and all measured ok. I hope I don't have to remove and disassemble the tuner chassis again to find the problem! It's a pain and it would be difficult to test without reassembly. Otherwise, it tuned up great and performs admirably. It's nice to have a signal first shot out of the box. It gives you something to easily troubleshoot. I think this will perform as good or better than my Scott 16. The magnetic tuning is interesting and works quite well. Once it locks into a station, you have to tune quite far off to get it to lock into the next station.
(This post was last modified: 02-10-2019, 11:50 PM by rfeenstra.)
Messages In This Thread
RE: 37-116 Restoration - by rfeenstra - 02-10-2019, 11:44 PM
Users browsing this thread: 2 Guest(s)
|
Recent Posts
|
Philco 50-925 antenna connections
|
Most loop antenna setups are either one continuous loop with two connections or 2 loops with 4 connections. The latter c...RodB — 02:16 PM |
Value of capacitor
|
Not trying to answer for the OP, just commenting on the thread.
According to AI... ...assuming the electrolytic that'...HowardWoodard — 02:09 PM |
Philco 50-925 antenna connections
|
Hello Keith! I've updated your thread with the proper model number. Take care, - GaryGarySP — 01:10 PM |
Value of capacitor
|
Why are you having to replace it? Does it measure out of tolerance? Is it mechanically damaged?DaleHCook — 07:50 AM |
462ron
|
Hi Keith, here is the official Philco service info found in the Philco Library under service info……https://philcoradio.c...462ron — 07:23 AM |
My collection presentation
|
This article has been completely updated and finished.
The beginning of a portable collection.Vlad95 — 11:49 PM |
Philco 50-295 antenna connections
|
Thanks Rod, That makes perfect sense. Is there a way to edit my post? It's a Philco 50-925 and not a Philco 50-295. D...keith49vj3 — 09:55 PM |
Philco 50-295 antenna connections
|
C is for an external speaker.RodB — 08:39 PM |
Philco 370LZ chair side not a 71LZ
|
Can you send a couple of pictures?slford310 — 07:11 PM |
Philco 370LZ chair side not a 71LZ
|
Thank you for the reply. After much studying I figured it just sat there and you have to open the top and pull up and/o...Villager61 — 06:42 PM |
Who's Online
|
There are currently 2229 online users. [Complete List] » 1 Member(s) | 2228 Guest(s)
|
|
|

|