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Tube-number record
7318
1 archive entry
BrandCBS-Hytron
ClassPulse Duotriode
BaseNoval (B9A)
Filament6.3 V @ 350 mA
Construction
Primary TypeDuotriode
EnvelopeT-6.5
Base MaterialGlass
Sections2
Filament / Heater
Heater NotesSeries or Parallel operation
Absolute Maximum Ratings
Plate Voltage430 V
Plate Dissipation3 W
Grid 1 Voltage-50 V
Cathode Current22 mA
H-C Voltage100 V
Audio Performance
Key Features
- Extremely fast cathode warm-up
- High peak-pulse emission
- Reliability tested for vibration and fatigue
- Compact T-6.5 envelope
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 high peak-pulse blocking oscillators, square-wave modulators, and multivibrators. Capable of providing 80% emission in 10 seconds. Furnishes rectangular pulses up to 55 microseconds width.
Datasheets
Datasheet: 7318.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.