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

Posted by Thomas Dermody on 02/03/2010 12:10

...Also, I discovered that page 3 gives the pin-out of the oscillator coil, which may help.

In studying both Peter's schematic and the schematic listed on this website (that are the same) http://www.nostalgiaair.org/PagesByModel/699/M0007699.pdf
I noticed that there's no 120 ohm resistor in series with the grid circuit of the oscillator coil, even though you show it on your chassis. Seems I remember having this strange damping resistor in the oscillator of my chassis, too. I'm not sure of its exact purpose, and maybe it isn't supposed to be there (my memory may be wrong). Try shorting across the 120 ohm resistor to see if the oscillator will function better without it.

T.

IPAddress: ***.254.163.97


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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