Sharp-Cutoff Pentode
The EF94 Vacuum tube is a miniature type used in compact
radio equipment as an RF amplifier especially in
high-frequency, wide-band applications. It is also used
as a limiter tube in FM equipment. This tube requires a
miniature 7-contact socket and may be mounted in any
position.
Electrical Data:
Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.3 A
Maximum Heater-Cathode Voltage:
Heater Positive with Respect to Cathode:
DC Component .............................. 90 V
Heater Negative with Respect to Cathode:
DC Component .............................. 90 V
Preferred Substitutes ......... 6AU6, 6136, 6HS6
Substitutes...6BA6 6HR6 6AH6 6CG6 6AG5 6BC5 6CE5