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W729

Information - Help 
ID = 22822
       
Country:
Great Britain (UK)
Brand: Marconi-Osram - (Valves/Tubes); GB
Tube type:  Vacuum Pentode   RF/IF-Stage 
Identical to W729

Base Noval, 9 pin miniature (USA pico-9) B9A
Was used by Radio/TV-reception etc.
Filament Vf 6.3 Volts / If 0.3 Ampere / Indirect / Parallel / series AC/DC
 
c10dbe0d_a7ec_42d8_a5f1_e2a82ab7d48a.jpeg
W729: Own photo
Roddie Rankin

 

from Just Qvigstad

Usage in Models 4= 1960?

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):4


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