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Tube Substitutions for:
ECF201
Medium-Mu Triode - Sharp-Cutoff Pentode

Type	Substitutes	Base Diagram
ECF201	6U9, 6U9	10K
Web References	ECF201 (Philips) @ Franks Electron Tubes ECF201 (Mazda-Belvu) @ Franks Electron Tubes ECF201 @ RadioMuseum.org

Type ECF201
Medium-Mu Triode - Sharp-Cutoff Pentode


MECHANICAL DATA

Basing

10K

ELECTRICAL DATA

HEATER CHARACTERISTICS

Heater Voltage	6.3	Volts
Heater Current	0.41	A

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