Valves QP22B - TT4  
   
     
 
Valve BASE Additional Base Info Use TV or Radio Equivalents Heater Volts Valve Characteristics
QP22B B7   RAD K77B QP21 QP230 240QP 2 TWIN OUTPUT 1W
QQV06-40A     RAD     VHF TRANSMITTING VALVE
R19 B9A   TV   1.25 RECTIFIER
R19 B9A   TV   1.25 RECTIFIER
S215 B4   RAD S2 PM12 S21 SS210 2 PENTODE
SD2 B4   RAD PM2HL 2 TRIODE AMP.
SD6 B7G   RAD   6.3 DIODE
SP61 MO MAZDA RAD   6.3 PENTODE
SU25 IO OCTAL TV   2 RECTIFIER
T41 IO   TV   4 THYRATRON
TDD13C B7   TV   13 TRIODE AMP.
TDD4 B7   RAD DDT4 MHD4 AC/HLDD H4D 11D3 A23 4 TRIODE AMP.
TP22 B9 RAD RAD   2 TRIODE/PENTODE F/C
TP25 MO MAZDA RAD   2 TRIODE PENTODE F/C
TP2620 B9   TV   26 TRIODE/PENTODE F/C
TT4 B5   RAD   4 TRIODE AMP
 
 
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