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Vintage R1131C Sylvania Crater-glow Modulator Tube Valve - BangyBang Tubes

Brand

Sylvania, old

Model

R1131C

Type                                         

Modulatable light source used in old timey facsimile machines
Description Used for facsimile equipment. 5 to 35mA, 150V max. 15 to 15000Hz modulation frequency

Similar/Equiv

N/A

Condition

New in Box (NOS)

Tubes per listing

1

 

11XXX