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BrandNational Union
ClassMagnetic Pick-up Tube
Base7-pin miniature
Filament6.3V @ 175mA
Construction
Primary TypeMagnetic Pick-up Tube
EnvelopeT-5 1/2
Sections2 collector plates
Filament / Heater
Heater NotesAC/DC
Absolute Maximum Ratings
Plate Voltage400 V
Grid 2 Voltage300 V
Cathode Current2.5 mA
Audio Performance
Key Features
- Magnetic field measurements down to 1 gamma
- Miniature electron gun
- Magnetic pole pieces
- Electrostatic deflection plates
- Push-pull output signal
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical Operating Conditions | 280V | - | 2600000 | - | 0.4mA |
Application Notes
The beam is adjusted by electrostatic deflection plates to divide equally between two collector plates. Magnetic fields cause deflection and change the relative division of the beam, developing a push-pull output across load resistors.
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