Tube-number record
12661
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BrandGeneral Electric
ClassPlanar Triode
BasePlanar / disc seal
Filament6.3 V @ 240 mA
Construction
Primary TypeTriode
EnvelopeCeramic-Metal
SectionsSingle
Filament / Heater
Warm-up Time60s
Heater NotesHeater voltage range 6.0 to 6.6V
Absolute Maximum Ratings
Plate Voltage600 V
Plate Dissipation4 W
Grid 1 Voltage50 V
Cathode Current40 mA
H-C Voltage50 V
Audio Performance
Key Features
- Ceramic-metal construction
- Long life power oscillator
- High current densities at lower voltages
- Low input to grid-plate capacitance ratio
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Average Characteristics | 150 V | 8500 | — | 40 | 25 mA |
| UHF Oscillator Service (450 MHz) | 300 V | — | — | — | 30 mA |
Application Notes
Designed for self-excited oscillators requiring extra feedback. Mounting position any. Net weight 0.07 ounces.
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