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OCH4

Information - Help 
ID = 19814
       
Country:
Argentina
Brand: Philips Argentina, FAPESA, Miniwatt tubes; Buenos Aires
Tube type:  Triode-Heptode   Frequency converter   Controlling (mu) 
Identical to OCH4
Similar Tubes
Heater different:
  UCH4

Base Octal (Int.Octal, IO) K8A, USA 1935
Was used by Radio/TV-reception etc.
Filament Vf 15 Volts / If 0.15 Ampere / Indirect / Series, AC/DC
Description

See also: Mysterious P-, O- and U- tube-series

 
Literature
 
sockel_uch4~~2.png
OCH4: g.h.
Gerhard Heigl

 

Usage in Models 1= 1945??

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

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