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Antique Radio Technical Forum
Majestic Model 70B

Posted by Terry on 11/03/2005 20:06

I have a Majestic radio model 70B with 7P6 power supply. The voltages are present for the 5Vpower, 1 1/2 V A.F, 2 1/2 det and 1 1/2 RF, but no +50, +96 or +260. All of the tubes light up and the radio is in very good shape (the old wiring has been replaced).

I suspect the transformers that generate these voltages or a "common" feed to these transformers.

I would appreictae any information that anyone can share. I have .pdf files of the chassis showing graphics as well as a schematic.

Grigsby-Grunow Co.
Model: 70B
Power:
Chassis:
Circuit:
Year: Pre 1932
IF:
Tubes:
Bands:
Resources
Riders Volume 1 - MAJESTIC 1-5
Riders Volume 1 - MAJESTIC 1-10
Riders Volume 1 - MAJESTIC 1-24
Courtesy Nostalgia Air
Courtesy Nostalgia Air
Courtesy Nostalgia Air
Courtesy Nostalgia Air

I am persistent and not ready to give up on bringing this radio back to life.

Thanks in advance for all of your help.

Terry



Majestic Model 70B 
Terry 11/03/2005 20:06 
Norm Leal 11/04/2005 08:51 
Radiodoc 11/04/2005 09:12 
Radiodoc 11/04/2005 13:07 
Terry 11/05/2005 15:25 
Radiodoc 11/05/2005 20:40 
Terry 11/06/2005 20:54 
Radiodoc 11/07/2005 10:42 
Terry 11/07/2005 19:48 
Radiodoc 11/07/2005 21:43 
Terry 11/08/2005 20:57 
Radiodoc 11/09/2005 10:23 
Terry 11/09/2005 20:07 
Terry 11/09/2005 21:16 
Radiodoc 11/10/2005 08:58 
Terry 11/10/2005 21:11 
Radiodoc 11/11/2005 14:11 
Terry 11/11/2005 20:50 
Radiodoc 11/11/2005 22:22 
Thomas Dermody 11/12/2005 01:52 
Terry 11/12/2005 19:34 
Radiodoc 11/14/2005 10:07 
Terry 11/14/2005 19:31 
Radiodoc 11/14/2005 22:26 
Terry 11/15/2005 19:23 
Radiodoc 11/15/2005 20:22 
Terry 11/16/2005 08:02 
Radiodoc 11/16/2005 08:43 
Terry 11/16/2005 13:13 
Radiodoc 11/16/2005 15:09 
Terry 11/16/2005 20:40 
Radiodoc 11/17/2005 09:05 
Thomas Dermody 11/17/2005 17:09 
Terry 11/17/2005 20:44 
Thomas Dermody 11/18/2005 00:32 
Thomas Dermody 11/18/2005 02:43 
Thomas Dermody 11/18/2005 12:19 
Terry 11/30/2005 20:09 
Thomas Dermody 11/30/2005 23:38 

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