Tube-number record
5BDP-
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BrandDu Mont
ClassCathode-ray Tube
BaseCRT base (B12 family)
Filament6.3 V @ 600 mA
Construction
Primary TypeElectrostatic Focus and Deflection
EnvelopeJ42-M1
Base MaterialMedium Shell Diheptal
SectionsDual Beam (two independently controlled beams)
Filament / Heater
Heater NotesValues per unit
Absolute Maximum Ratings
Plate Voltage25500 V
Plate Dissipation6 W
Grid 2 Voltage3500 V
Grid 1 Voltage-200 V
H-C Voltage180 V
Audio Performance
Key Features
- Flat-faced
- Independently controlled dual beams
- Sub-divided intensifier
- Metallized screens
- Direct bulb wall deflector leads
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Post-Accelerator Operation | 14000 V | — | — | — | — |
Application Notes
The deflector leads are brought out directly through the bulb wall to minimize lead inductance and capacitance. Intended for high writing rates.
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