D7-222GY
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ClassInstrument Cathode-Ray Tube
BaseJEDEC B12-246
Filament6.3V @ 240mA
Construction
Primary TypeMono accelerator
EnvelopeRectangular flat faced glass
Base MaterialGlass
Sections1
Filament / Heater
Heater NotesIndirect heating; not to be connected in series with other tubes
Absolute Maximum Ratings
Plate Voltage2200 V
Grid 2 Voltage2200 V
Grid 1 Voltage-200 V
H-C Voltage125 V
Audio Performance
Key Features
- Rectangular flat face
- Quick-heating cathode
- 1.5 W cathode
- Symmetrical deflection
- Built-in rotation coil
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Oscilloscope | 1000V | - | - | - | - |
Application Notes
Primarily for use in inexpensive oscilloscopes and monitors. Deflection plates should be driven by a low impedance source if full capabilities are used.
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