Tube-number record
3BHP
0 archive entries
3BHP is a tube type in the TubeDatabase archive (class: Cathode-Ray Tube). Recorded specifications: brand Toshiba, construction Electrostatic Focus and Deflection, socket CRT base (B12 family), maximum plate voltage 7000 V, and maximum plate dissipation 6 W. The archive does not yet hold a photographed example of this type.
BrandToshiba
ClassCathode-Ray Tube
BaseCRT base (B12 family)
Filament6.3 V @ 300 mA
Construction
Primary TypeElectrostatic Focus and Deflection
Envelope3-inch, Flat Face
SectionsSingle gun
Filament / Heater
Heater NotesUnipotential Cathode
Absolute Maximum Ratings
Plate Voltage7000 V
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Operation Example 1 | 3000 V | — | — | — | — |
| Operation Example 2 | 6000 V | — | — | — | — |
Application Notes
Recommended post-accelerator voltage not less than 1000V for P1/P11 and 2000V for P2/P4/P7. Isolation shield and helical-post-accelerator lower end are connected internally.
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