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P77

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ID = 81941
       
Country:
France
Brand: SFR (S.F.R.) - Société Française Radio-Électrique; Paris
Tube type:  Vacuum Pentode   Power/Output 
Identical to P77

Base Jumbo 4-pin bayonet (1918) Sidecontact and top contact.
Was used by Transmittertube (Radio)
Filament Vf 10 Volts / If 2 Ampere / Direct / Specified voltage AC/DC
Description

Va: 1500 V Ia: 170 mA Vg1: -80 V Vg2: 400 V Ig2:40 mA Wa:85 W Fmax: 25 MHz

 
Information source

p77_sfr_culot_s.png P77: P.H. Brans Radio-Tubes Vade-Mecum 1961-63
Patrice Zeissloff


Just Qvigstad
p77_sfr_brans_doc.png
P77: P.H. Brans Radio Tubes Vade-mecum 1961-63
Patrice Zeissloff

Collection of

 
p77_sfr_p01_s.jpg

P77
 

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