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ID = 29450
Brand: SFR (S.F.R.) - Société Française Radio-Électrique; Paris
Tube type:  Vacuum Pentode   Power/Output 
Identical to BPM04 = 6AQ5
First Source (s)
01.Feb.1949 : - - Manufacturers Literature

Base Miniatur-7-Pin-Base B7G, USA 1940
Was used by Technology / Measurement
Filament Vf 6.3 Volts / If 0.45 Ampere / Indirect / Specified voltage AC/DC

SFR designation for the 6AQ5

Dimensions (WHD)
incl. pins / tip
x 67 x 19 mm / x 2.64 x 0.75 inch
Information source Universal Vade-Mecum, Electron Valves and Semiconductor Devices   group 221
- - Manufacturers Literature   

bpm04_so.png BPM04: rtt
Anonymous 10 Collector

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Just Qvigstad
BPM04: Manufacturer data
Patrice Zeissloff

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