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Sunday, June 4, 2023

Can you ID this Receiver? Grayson Finds a Homebrew Receiver in Germany. From the GDR. Circuit? Schematic? Thermatrons?

Grayson Evans KJ7UM (the author of  Hollow State Design) was recently in Germany where he spotted this museum display of a homebrew receiver built in the GDR (the old East Germany) around 1983 by a 13 year-old.   Very cool. 

Here is today's task for SolderSmoke:  Can you provide any more info on this receiver? The card indicates 0-V-1 which would be a regen with no RF amplifier, right?  Maybe something like this: 

 Look carefully at the pictures and try to gather any additional information on the receiver or its builder.  

Thanks Grayson! 


  1. This comment has been removed by the author.

  2. I'm thinking the valves are Soviet made 6j1p.
    I thought this was interesting.
    The builder would be 53 now. I don't see how the tuning would work.



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