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HLDD1320

Information - Help 
ID = 25935
       
Country:
Great Britain (UK)
Brand: Mazda = Valve (Tube) brand GB (see also France)
Tube type:  Double Diode-Triode   Audio Frequency 
Identical to HLDD1320

Base British-7-Pin, old (M7A) Top contact with a cap.
Was used by Radio/TV-reception etc.
Filament Vf 13 Volts / If 0.2 Ampere / Indirect
Description

Grid from top cap.

 
Information source Babani, International Radio Tube Encyclopaedia   p. 110 & 111
Universal Vade-Mecum, Electron Valves and Semiconductor Devices


Just Qvigstad
Usage in Models 3= 1934

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):3
 

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