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Looking for schematic and info for Sargent 21 receiver

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Author Topic: Looking for schematic and info for Sargent 21 receiver  (Read 877 times)
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« on: March 15, 2012, 06:10:53 PM »

I have a Sargent 21-MA which will soon go on the bench and I have been unable to find much info about it.  There is a little bit in Moore's book and some of it is repeated on the internet but I have found nothing else.  I was hoping I would find some info in some of my old radio magazines like I did for my Sargent 11-MA but no such luck.

The 21 was made in late 1936 through 1937 and is a 12 tube superhet with a regenerative RF stage.  Mine is missing its power transformer so I would at least like to find out the target B+ value.  Mine is the -MA version which covers 80 Khz. through 30 Mhz. but the -AA (amateur) version is the same except it doesn't have the 2 VLF ranges so info for either model would be most helpful.

* Sargent 21-MA.JPG (865.36 KB, 1600x890 - viewed 294 times.)

Rodger WQ9E
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