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Tube Substitutions for:
7457
Power Tetrode
Type
Substitutes
Base Diagram
7457
6884
F77
Web References
7457 (RCA (HB3)) @ Franks Electron Tubes
Type
7457
Power Tetrode
MECHANICAL DATA
Basing
F77
ELECTRICAL DATA
HEATER CHARACTERISTICS
Heater Voltage
6.3
Volts
Heater Current
3.2
A
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