Tube-number record
3RP-A
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ClassCathode-Ray Tube
BaseDuodecal
Filament6.3 V @ 600 mA
Construction
Primary TypeDisplay / CRT
EnvelopeGlass
Filament / Heater
Absolute Maximum Ratings
Plate Voltage2500 V
Plate Dissipation6 W
Grid 2 Voltage2500 V
Grid 1 Voltage-290 V
H-C Voltage125 V
Audio Performance
Key Features
- Short, flat-face 3 inch tube
- High brilliance and definition
- High deflection sensitivity
- Separate pin for each deflection plate
- Balanced deflection
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Anode No. 2 Voltage 1000V | 1000 V | — | — | — | — |
| Anode No. 2 Voltage 2000V | 2000 V | — | — | — | — |
Application Notes
Ideally suited for low- and medium-voltage oscillographic applications. Special construction of deflection plates D1-D2 minimizes pin-cushion distortion.
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