Tube-number record
7BH
0 archive entries
7BH is a tube type in the TubeDatabase archive (class: Cathode Ray Tube). Recorded specifications: brand General Electric, construction Display / CRT, socket CRT base (B12 family), maximum plate voltage 10000 V, and maximum plate dissipation 6 W. The archive does not yet hold a photographed example of this type.
BrandGeneral Electric
ClassCathode Ray Tube
BaseCRT base (B12 family)
Filament6.3 V @ 600 mA
Construction
Primary TypeDisplay / CRT
EnvelopeGlass, 5-1/2 inch square
Sections2
Filament / Heater
Heater NotesHeater current is 0.6A +/- 10%
Absolute Maximum Ratings
Plate Voltage10000 V
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Dual Beam Operation | 7500 V | — | — | — | 0.03 mA |
Application Notes
The screen is aluminized for greater light output and to minimize screen charging effects. Collar base connections are used to minimize lead inductance and capacity.
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