Tube-number record
DOUBLE DIODE
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BrandTung-Sol
ClassRectifier
BaseNoval (B9A)
Filament26.5 V @ 0.2 mA
Construction
Primary TypeDiode
Rectifier TypeFull-wave or Half-wave
EnvelopeGlass
Base MaterialMiniature Button 9 Pin
SectionsDouble
Filament / Heater
Heater NotesAC or DC operation
Absolute Maximum Ratings
Plate Voltage1375 V
Cathode Current110 mA
H-C Voltage450 V
Audio Performance
Key Features
- Ruggedized Construction
- Premium Tube
- Severe Shock and Vibration Resistant
- Unipotential Cathode
- Airborne Equipment Suitability
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Full-Wave Rectifier (Capacitor Input) | 325 V | — | 300 | — | 100 mA |
| Full-Wave Rectifier (Choke Input) | 450 V | — | — | — | 100 mA |
Application Notes
The 26Z5W is ideal for operation in airborne equipment where a 26 volt power supply is normally available. It is suitable for use as a half or full wave rectifier or voltage doubler.
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