5738
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BrandFederal Telecommunication Laboratories, Inc.
ClassCommutator Tube
BaseMedium shell diheptal 12 pin (Gun) / B26-53 (Dynode)
Filament6.3V @ 0.6mA
Construction
Primary TypeElectron-beam commutator
EnvelopeGlass
Sections25-circuit
Filament / Heater
Heater NotesCoated unipotential cathode
Absolute Maximum Ratings
Plate Voltage2000 V
Grid 2 Voltage2000 V
Grid 1 Voltage-75 V
Cathode Current1 mA
Audio Performance
Key Features
- 25-circuit electron-beam
- Single stage of secondary electron multiplication
- Electrostatic focus
- Electrostatic deflection
- Circular array of 25 secondary emission dynodes
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Circular Sweep | 1500V | - | - | - | 0.5mA |
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