6GD7
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BrandSylvania
ClassReceiving Tube
Base9-Pin
Filament6.3V @ 380mA
Construction
Primary TypeTriode-Pentode
EnvelopeT-6 1/2
Base MaterialSmall Button 9-Pin
Sections2
Filament / Heater
Heater NotesParallel Operation
Absolute Maximum Ratings
Plate Voltage250 V
Plate Dissipation2.1 W
Grid 2 Voltage250 V
Cathode Current20 mA
H-C Voltage100 V
Audio Performance
Key Features
- Medium mu triode
- Sharp cutoff pentode
- VHF oscillator and mixer
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Triode Section | 125V | 10000 | 4700 | 47 | 15mA |
| Pentode Section | 170V | 12000 | 350000 | 70 | 10mA |
Application Notes
Control grid to cathode spacings are of low order of magnitude; avoid voltages above 30V DC/peak AC in tube checkers.
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