[MRCA] Mystery Radio

[ac2eu at yahoo.com]

 I don't see any XTALs and the selector switch has torroids The 3B4 tube was first introduced in 1948 according to the release notice, so it was post WWII.
The more I look at it, the less it looks like a radio. maybe a metal detector chassis?    On Saturday, November 29, 2025 at 03:28:43 PM EST, Al Klase <ark at ar88.net> wrote:  
 
   
 
   
 
 Larger tube is a 3B4 (Gone to air)
 
 What is this?
 AL -- 
 ARK Sig BlockAl Klase - N3FRQ
 Jersey City, NJ
 http://www.skywaves.ar88.net/
  
 
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