6CN7
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BrandGeneral Electric
ClassDuplex-Diode Triode
Base9-Pin (Small Button)
Filament6.3V @ 0.3mA
Construction
Primary TypeDuplex-Diode Triode
EnvelopeT-6 1/2 Glass
SectionsSeparate cathodes for diode and triode
Filament / Heater
Warm-up Time11s
Heater NotesControlled heater-warm-up characteristic for series-connected heaters
Absolute Maximum Ratings
Plate Voltage300 V
Plate Dissipation1 W
H-C Voltage200 V
Audio Performance
Key Features
- Separate cathodes
- Controlled warm-up time
- Triode electrically identical to 6T8
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A Amplifier (Condition 1) | 100V | 1300 | 54000 | 70 | 0.8mA |
| Class A Amplifier (Condition 2) | 250V | 1200 | 58000 | 70 | 1mA |
Application Notes
Primarily intended as horizontal phase detector and reactance tube in TV receivers; also sync-separator or audio-amplifier.
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