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(!!!!!) (~ Premium 211 Sub - rare ~) USN-CRC-38111A=835 RCA NOS 1936 original boxes - very rare (211 SUB)

$ 3,398.88

1 pair) USN-CRC-38111A=835 RCA NOS 1936 original boxes (Contract # 42717: June 17th, 1935) square "flat foil" getters (very rare) tubes are in excellent condition - tested in 1940 and 2019

1 tube) Serial #33435 (May 4th, 1936) 

118.4ma Gm=4550

1 tube) Serial #52744 (June 23rd, 1936)

111.2ma Gm=4070

 

Rarest 38111A ever made 

 

Vplate=500V

Vgrid=-1V

Good Ma range 100-120ma

Good Gm = 3600

 

HISTORY

835 is a low capacitance 211 and often branded US Navy 38111A

Very Rare

 

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