Tube-number record
6955
0 archive entries
BrandCBS-Hytron
ClassMedium-mu duotriode
BaseNoval (B9A)
Filament6.3 V @ 350 mA
Construction
Primary TypeDuotriode
EnvelopeT-6 1/2
Base MaterialMiniature 9-pin (E9-1)
Sections2
Filament / Heater
Heater NotesSeries or parallel operation
Absolute Maximum Ratings
Plate Voltage300 V
Plate Dissipation2.75 W
Grid 1 Voltage-250 V
Cathode Current20 mA
H-C Voltage90 V
Audio Performance
Key Features
- High reliability in pulsed emission
- 2 amperes up to 10 µs without slump
- Fast warm-up time (10 seconds)
- Vibration tested to 500 cps
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A Amplifier | 100 V | 3500 | 5800 | 21.3 | 13 mA |
| Class A Amplifier | 250 V | 2350 | 7000 | 16.5 | 11.5 mA |
| Pulse Modulator | 300 V | — | — | — | 900 mA |
Application Notes
Designed for pulse circuits, high peak power blocking oscillators, multivibrators, and square-wave modulators.
Datasheets
Datasheet: 6955.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
0 results