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Antique Radio Technical Forum
Crackling problem solved, but can't receive stations.

Posted by Terry Decker on 02/17/2010 12:49

:Hi Terry:
:
:Your radio arrived here today.
:
:It was packed very well.... but I noticed there are cracks in the case on the bottom where you have the mounting screws.. right?
:It doesn't look like anything from shipping.
:
:ANYWAY.. it's fixed and running nicely as we speak ...lol
:
:You weren't far off.
:I put my scope lead by the oscillator coil and saw it was not running.
:So I checked the wiring.
:
:The small winding (.6 ohms) of the oscillator coil that connects one lug to the cathode and the other to B- was simply reversed.
:
:It's a 50/50 call and I just swapped them and it was off and running.
:
:You had an additional un-needed 120 ohm resistor in series with the 47pf cap to pin 1 but I connected the 47pf cap directly to pin 1 as shown in the print.. but it will work either way.
:
:I also checked the IF alignment and tried to tweak it a bit but it was fine right where it was.
:
:I noticed that there is a lot of wires that aren't so neat and I could have cleaned all that up.. but I figured it's better left up to you. It's working now so you can go in and do whatever else you feel like ... but nothing that MUST be fixed.. only neatness stuff.
:I'll put it back together and get it ready to mail back to you.
:
:Have fun with it.
:
:
:
:IPAddress: ***.115.81.106

Thanks- you just HAD to mention the messy wiring.

NOTE TO OTHER MEMBERS- That's not my work, but the other goober that was in there before me. I can see I'm going to have to post photos of MY work which is on the left side of the chassis, and his crappy work on the right side. Geez, I'm NEVER going to live this down. Cleaning up his work and replacing the rest of the paper caps is next on the agenda.

Seriously though- I can't thank you enough. This obviouly happened while I was repairing the IF mica caps, because the radio worked before then. After getting this confused I was just chasing my tail-and you got it out of the fire. This just goes to show how great these forums are, and how we are here to help each other.
Many thanks again-
terry

IPAddress: ***.28.48.106


Crackling problem solved, but can't receive stations. 
Terry Decker 01/30/2010 13:20 
Bill G. 02/01/2010 18:22 
Terry Decker 02/01/2010 18:55 
Thomas Dermody 02/01/2010 19:12 
Thomas Dermody 02/01/2010 22:29 
Terry Decker 02/01/2010 23:21 
Thomas Dermody 02/02/2010 03:41 
Terry Decker 02/02/2010 23:23 
Thomas Dermody 02/03/2010 01:52 
Peter G. Balazsy 02/03/2010 02:15 
Thomas Dermody 02/03/2010 12:10 
Terry Decker 02/03/2010 23:30 
Thomas Dermody 02/04/2010 01:27 
Peter G. Balazsy 02/04/2010 03:14 
Terry Decker 02/04/2010 12:41 
Edd 02/04/2010 16:46 
Terry Decker 02/04/2010 17:13 
Thomas Dermody 02/04/2010 19:10 
Peter G. Balazsy 02/04/2010 23:02 
Terry Decker 02/04/2010 23:52 
Terry Decker 02/05/2010 00:01 
Peter G. Balazsy 02/05/2010 01:29 
Warren 02/05/2010 02:06 
Edd 02/05/2010 04:44 
Thomas Dermody 02/05/2010 06:50 
Peter G. Balazsy 02/05/2010 06:50 
Bill G. 02/05/2010 11:17 
Terry Decker 02/05/2010 12:45 
Marv Nuce 02/05/2010 13:18 
Terry Decker 02/05/2010 14:50 
Thomas Dermody 02/05/2010 17:46 
Marv Nuce 02/05/2010 21:10 
Terry Decker 02/05/2010 23:26 
Marv Nuce 02/06/2010 00:24 
Marv Watcher 02/07/2010 04:39 
Marv Nuce 02/07/2010 13:30 
Terry Decker 02/07/2010 13:47 
Cindy to Terry 02/07/2010 15:45 
Marv Nuce 02/07/2010 18:13 
Thomas Dermody 02/07/2010 19:06 
Marv Nuce Watcher 02/08/2010 04:16 
Thomas Dermody 02/08/2010 07:27 
Marv Nuce 02/08/2010 13:25 
Peter G. Balazsy 02/08/2010 01:32 
Terry Decker 02/08/2010 12:13 
Edd 02/09/2010 03:23 
Terry Decker 02/09/2010 13:07 
Peter G. Balazsy 02/09/2010 23:13 
Terry Decker 02/10/2010 10:52 
Thomas Dermody 02/10/2010 00:41 
Peter G. Balazsy 02/10/2010 02:04 
Thomas Dermody 02/10/2010 09:35 
Terry Decker 02/11/2010 18:33 
Peter G. Balazsy 02/11/2010 22:08 
Thomas Dermody 02/12/2010 00:26 
Peter G. Balazsy 02/12/2010 14:27 
Terry Decker 02/12/2010 19:52 
Peter G. Balazsy 02/17/2010 04:22 
Terry Decker 02/17/2010 12:49 
Terry Decker 02/17/2010 12:54 
Thomas Dermody 02/17/2010 18:42 
Peter G. Balazsy 02/20/2010 03:10 
Terry Decker 02/20/2010 13:41 
Terry Decker 02/24/2010 23:11 
Cindy 02/25/2010 01:19 
Marv Nuce 02/25/2010 15:56 
Terry Decker 02/26/2010 00:27 
Terry Decker 03/06/2010 12:52 

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