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It's been a while... FOUND
Eric Adams
Phorum Expert
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Posts: 823
Threads: 111
Joined: Aug 2012
City: Lake in the Hills, IL
#1

09-12-2015, 10:22 PM
Since I've run across a problem like this. I have a 49-905 that I just finished replacing all the electrolytic and paper capacitors. All tubes and resistors check ok. My problem is a hum. It gets louder with the volume control but never over powers a station. I checked all the wires and they appear to be dressed as original. Even though the tubes tested good I swapped them out 1 by 1 with no difference.
Any help will be appreciated.

Schematic

Thanks,
Eric
Lake in the Hills, IL
Member: Philco Phorum, ARF, ARCI & Radiomuseum.org

(This post was last modified: 10-03-2015, 04:04 PM by Eric Adams. Edit Reason: spelling )
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Messages In This Thread
It's been a while... FOUND - by Eric Adams - 09-12-2015, 10:22 PM
RE: It's been a while... - by morzh - 09-12-2015, 11:19 PM
RE: It's been a while... - by Eric Adams - 09-13-2015, 12:00 AM
RE: It's been a while... - by Radioroslyn - 09-13-2015, 07:35 AM
RE: It's been a while... - by Eric Adams - 09-13-2015, 12:58 PM
RE: It's been a while... FOUND - by Eric Adams - 10-03-2015, 04:07 PM
RE: It's been a while... FOUND - by klondike98 - 10-04-2015, 10:45 AM



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