(!!) 5R4GYB RCA rebranded Raytheon NOS 1960's (50/40 and 53/40)
$ 25.99
5R4GYB RCA rebranded Raytheon NOS 1960's
50/40
53/40
See more: vacuum tube
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 5R4GYB RCA rebranded Raytheon NOS 1960's (50/40 and 53/40) "Pin It")
5R4GYB RCA rebranded Raytheon NOS 1960's
50/40
53/40
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