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U1230_4pin

Information - Help 
ID = 20177
       
Country:
Germany
Brand:
Tube type:  Current Regulator, Urdox without FeH   Power-supply 
Identical to U1230_4pin
Similar Tubes
Other base:
  U1230-4 ; U1230-4_Topf-5 ; U1230/4 ; U1230/4S

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Was used by Radio/TV-reception etc.
Filament If 0.3 Ampere / Specified current AC/DC ~ = (Series working)
Description

300mA bei 10...14V
Netzspannung: 220V

 
Information source Taschenbuch zum Röhren-Codex 1948/49   

u12304pin_sock.png U1230_4pin: Tabu Röhren-Codex, 1948
Anonymous 15 Collector


Just Qvigstad
Usage in Models 1= 1940?

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

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