7C6
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BrandSylvania
ClassDuodiode High-Mu Triode
BaseLock-In 8 Pin
Filament7V @ 160mA
Construction
Primary TypeDuodiode High-Mu Triode
EnvelopeT-9
SectionsTriode, Two Diodes
Filament / Heater
Heater Notes7-volt heater rating corresponds to a 130-volt line condition.
Absolute Maximum Ratings
Plate Voltage300 V
Cathode Current1 mA
H-C Voltage90 V
Audio Performance
Key Features
- Single-ended
- Lock-in construction
- Duodiode High-Mu Triode
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Triode Section | 100V | 850 | 110000 | 85 | 1mA |
| Triode Section | 250V | 1000 | 100000 | 100 | 1.8mA |
Application Notes
The triode section should not be employed with fixed bias. A high value of grid resistor is required and the triode operated essentially under zero bias conditions. Diode curves are given under Type 7B6.
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