7733
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BrandCBS
ClassPentode
BaseMiniature 9-pin (E9-1)
Filament6.3V @ 600mA
Construction
Primary TypeWideband Pentode
EnvelopeT-6 1/2
Base MaterialGold plated pins
SectionsSingle
Filament / Heater
Heater NotesContinuous-wound coil heater; Peak heater-cathode voltage 200V
Absolute Maximum Ratings
Plate Voltage330 V
Plate Dissipation6.5 W
Grid 2 Voltage190 V
Grid 1 Voltage-55 V
H-C Voltage200 V
Audio Performance
Key Features
- Gold plated base pins
- Wideband performance
- High reliability
- Stable characteristics
- 5000-hour informational life test
- Low noise and microphonism
- Replacement for 12BY7 and 12BY7A
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A Amplifier | 250V | 12000 | 90000 | 31.5 | 24mA |
Application Notes
Designed for use in measurement test equipment, instrumentation, and applications requiring extreme reliability and long life.
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