6CH8
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BrandSylvania
ClassMedium Mu Triode Sharp Cutoff Pentode
BaseE9-1, Small Button 9-Pin
Filament6.3V @ 450mA
Construction
Primary TypeTriode-Pentode
EnvelopeT-6 1/2
Base MaterialSmall Button 9-Pin
Sections2
Filament / Heater
Heater NotesHeater-Cathode Voltage: 200V Max (Total DC and Peak)
Absolute Maximum Ratings
Plate Voltage300 V
Plate Dissipation2.6 W
Grid 2 Voltage300 V
H-C Voltage200 V
Audio Performance
Key Features
- Sharp Cutoff Pentode
- Medium Mu Triode
- Common envelope
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Triode Section | 200V | 3300 | 5750 | 19 | 13mA |
| Pentode Section | 200V | 6200 | 300000 | - | 9.5mA |
Application Notes
The pentode section may be used as a reactance tube, IF, video or AGC amplifier. The triode section may be used as a low frequency oscillator, sync clipper, sync separator or phase splitter.
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