Tube-number record
25EC6
0 archive entries
25EC6 is a tube type in the TubeDatabase archive (class: Beam Pentode). Recorded specifications: brand General Electric, year 1956, construction Beam tetrode / beam power, base Short Medium-Shell Octal 8-Pin, socket Octal, maximum plate voltage 700 V, and maximum plate dissipation 10 W. The archive does not yet hold a photographed example of this type.
BrandGeneral Electric
ClassBeam Pentode
BaseOctal
Filament25 V @ 0.6 mA
Construction
Primary TypeBeam tetrode / beam power
EnvelopeT-12 Glass
Base MaterialShort Medium-Shell Octal 8-Pin
Filament / Heater
Heater NotesControlled heater warm-up characteristic for 600-milliampere series-connected heaters.
Absolute Maximum Ratings
Plate Voltage
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Average Characteristics 1 | 60 V | — | — | — | 350 mA |
| Average Characteristics 2 | 135 V | 7500 | 4700 | 3.8 | 70 mA |
Application Notes
Designed for use as a horizontal-deflection amplifier in television receivers.
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