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Tube Substitutions for:
5643
Gas Tetrode

Type	Substitutes	Base Diagram
5643		8DD
Web References	5643 (Tung-Sol) @ Franks Electron Tubes 5643 (Bendix) @ Franks Electron Tubes 5643 (Sylvania) @ Franks Electron Tubes 5643 (CSF) @ Franks Electron Tubes

Type 5643
Gas Tetrode


MECHANICAL DATA

Basing

8DD

ELECTRICAL DATA

HEATER CHARACTERISTICS

Heater Voltage	6.3	Volts
Heater Current	0.15	A

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