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Tube Substitutions for:
3A4
Power Amplifier Pentode
Type
Substitutes
Base Diagram
3A4
3Q4
,
3W4
Web References
3A4 (Mazda-Belvu) @ Franks Electron Tubes
3A4 (Tung-Sol) @ Franks Electron Tubes
3A4 @ RadioMuseum.org
Type
3A4
Power Amplifier Pentode
MECHANICAL DATA
Basing
7BB
ELECTRICAL DATA
HEATER CHARACTERISTICS
Heater Voltage
2.8/1.4
Volts
Heater Current
0.1/0.2
A
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