12BZ7
10 Tubes in archive
BrandSylvania
ClassHigh-Mu Twin Triode
BaseSmall Button 9-Pin
Filament12.6V @ 300mA
Construction
Primary TypeTwin Triode
EnvelopeT-6 1/2
Sections2
Filament / Heater
Heater NotesSeries/Parallel
Absolute Maximum Ratings
Plate Voltage300 V
Plate Dissipation1.5 W
Grid 1 Voltage-50 V
H-C Voltage180 V
Audio Performance
Key Features
- High-mu
- Miniature
- Twin triode
- Coated Unipotential Cathode
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A Amplifier - Each Section | 250V | 3200 | 31800 | 100 | 2.5mA |
Application Notes
Designed primarily for use as a sync separator and sync amplifier in television receivers. Also useful in clipping circuits and as a general purpose audio amplifier.
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