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42-1008 code 122
Eric T
Senior Member
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Posts: 298
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Joined: May 2012
City: Chattanooga State, Province, Country: TN
#24

12-28-2012, 12:06 PM
OK, major problem now.

After working well for about an hour, a full volume growl started and is constant on all bands and phono. The volume control does not affect it, the tone control makes a slight change. I pulled out the 1st audio/2nd detector 7c6 tube and the horrible sound is still there, so I suspect it's somewhere in the audio section.

I'm going to get out the o-scope and see if I can find anything, but I'm also hoping someone has an idea of what might have gone bad here.
(This post was last modified: 12-28-2012, 12:07 PM by Eric T.)
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Messages In This Thread
42-1008 code 122 - by Eric T - 12-26-2010, 02:49 PM
RE: 42-1008 code 122 - by Eric T - 06-05-2012, 08:02 PM
RE: 42-1008 code 122 - by Michael Dennis - 06-05-2012, 08:20 PM
RE: 42-1008 code 122 - by Sean - 06-06-2012, 11:24 AM
RE: 42-1008 code 122 - by Eric T - 06-06-2012, 06:21 PM
RE: 42-1008 code 122 - by Eric T - 07-18-2012, 10:12 PM
RE: 42-1008 code 122 - by Eric T - 07-29-2012, 09:58 AM
RE: 42-1008 code 122 - by Eric T - 07-29-2012, 10:07 AM
RE: 42-1008 code 122 - by Eric T - 12-16-2012, 09:57 AM
RE: 42-1008 code 122 - by Eric T - 12-20-2012, 10:05 PM
RE: 42-1008 code 122 - by Eric T - 12-22-2012, 01:28 PM
RE: 42-1008 code 122 - by Eric T - 12-22-2012, 05:14 PM
RE: 42-1008 code 122 - by Ron Ramirez - 12-23-2012, 12:09 PM
RE: 42-1008 code 122 - by Eric T - 12-23-2012, 03:27 PM
RE: 42-1008 code 122 - by Eric T - 12-23-2012, 08:25 PM
RE: 42-1008 code 122 - by Eric T - 12-24-2012, 12:15 AM
RE: 42-1008 code 122 - by Eric T - 12-24-2012, 06:23 PM
RE: 42-1008 code 122 - by Eric T - 12-24-2012, 06:52 PM
RE: 42-1008 code 122 - by Ron Ramirez - 12-24-2012, 07:02 PM
RE: 42-1008 code 122 - by Eric T - 12-27-2012, 10:56 AM
RE: 42-1008 code 122 - by codefox1 - 12-27-2012, 04:36 PM
RE: 42-1008 code 122 - by Michael Dennis - 12-28-2012, 02:24 AM
RE: 42-1008 code 122 - by Eric T - 12-28-2012, 12:06 PM
RE: 42-1008 code 122 - by Eric T - 12-28-2012, 01:01 PM
RE: 42-1008 code 122 - by Eric T - 12-28-2012, 04:48 PM
RE: 42-1008 code 122 - by Ron Ramirez - 12-28-2012, 05:12 PM
RE: 42-1008 code 122 - by Ron Ramirez - 12-28-2012, 05:14 PM
RE: 42-1008 code 122 - by Eric T - 12-28-2012, 06:08 PM
RE: 42-1008 code 122 - by Eric T - 12-28-2012, 07:05 PM
RE: 42-1008 code 122 - by Ron Ramirez - 12-28-2012, 08:19 PM
RE: 42-1008 code 122 - by Eric T - 12-28-2012, 09:21 PM
RE: 42-1008 code 122 - by Eric T - 12-29-2012, 04:40 PM
RE: 42-1008 code 122 - by Eric T - 12-31-2012, 06:35 PM
RE: 42-1008 code 122 - by Eric T - 01-18-2013, 07:36 PM
RE: 42-1008 code 122 - by 7estatdef - 01-21-2013, 11:19 AM
RE: 42-1008 code 122 - by Eric T - 01-21-2013, 01:46 PM
RE: 42-1008 code 122 - by Eric T - 06-29-2013, 06:53 PM
RE: 42-1008 code 122 - by morzh - 06-29-2013, 10:02 PM
RE: 42-1008 code 122 - by Eric T - 06-30-2013, 05:39 PM
RE: 42-1008 code 122 - by morzh - 06-30-2013, 05:49 PM
RE: 42-1008 code 122 - by Eric T - 09-16-2013, 01:26 PM
RE: 42-1008 code 122 - by Eforrester - 11-22-2017, 11:52 PM
RE: 42-1008 code 122 - by Radioroslyn - 11-23-2017, 11:58 AM
RE: 42-1008 code 122 - by Eforrester - 11-30-2017, 12:38 PM
Re: 42-1008 code 122 - by 7estatdef - 12-26-2010, 04:07 PM



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  1. The PHILCO Phorum
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  3. Philco Electronic Restoration