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ID = 29015
United States of America (USA)
Brand: USA - Tubes designated in the USA
Tube type:  Current Regulator, Iron in Hydrogen 
Identical to 1H-20

Base Octal (Int.Octal, IO) K8A, USA 1935
Description For special equipment, connections to pin 2 and 7. 18 to 60V voltage range, 150mA. 
Text in other languages (may differ)
Information source Ballast-Tube Handbook; Jacobi 1985   
1H-20: My tubes
Anonymous 413 Collector


from Just Qvigstad

Usage in Models 1= 1942?

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):1

Collection of a member from FIN

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