5965
1 Tube in archive
BrandSylvania
ClassMiniature twin triode
BaseNoval (B9A)
Filament6.3V @ 0.45mA
Construction
Primary TypeTriode
EnvelopeT-6 1/2
Base MaterialGlass
SectionsTwin
Filament / Heater
Heater NotesSeries or parallel operation
Absolute Maximum Ratings
Plate Voltage300 V
Plate Dissipation2.2 W
Cathode Current15 mA
H-C Voltage180 V
Audio Performance
Key Features
- High-speed digital computer service
- High zero bias plate current
- Sharp cut-off characteristic
- Separate cathode connection
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Average Characteristics (Each Section) | 150V | 6500 | 7250 | 47 | 8.2mA |
| Computer Service - On Condition | 150V | - | - | - | 10.5mA |
| Computer Service - Off Condition | 150V | - | - | - | - |
Application Notes
Section 1 connects to pins 6, 7 and 8. Section 2 connects to pins 1, 2 and 3.
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