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12H31

Information - Help 
ID = 3622
       
Country:
Czechoslovakia
Brand: Tesla; Praha, Bratislava etc.
Tube type:  Pentagrid-Converter (Heptode)   Frequency converter 
Identical to 12H31

Base Miniatur-7-Pin-Base B7G, USA 1940
Was used by Radio/TV-reception etc.
Filament Vf 12.6 Volts / If 0.15 Ampere / Indirect / Parallel / series AC/DC
Dimensions (WHD)
incl. pins / tip
19 x 57 x mm / 0.75 x 2.24 x inch
Information source Universal Vade-Mecum, Electron Valves and Semiconductor Devices   
 
12h31_tesla.jpg
12H31: M.M.
Michael Mischke

 
12h31_sock.gif
12H31: Universal Vademecum, 1960
Anonymous 15 Collector

 
12h31_spec.png
12H31: data-sheet
Anonymous 15 Collector


from Just Qvigstad

Usage in Models 1= 1956

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


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