Tube-number record
G150/2D
0 archive entries
G150/2D is a tube type in the TubeDatabase archive (class: Cold-Cathode Gas-Filled Triode). Recorded specifications: brand Standard Telephones and Cables Limited, construction Triode, and socket Octal. The archive does not yet hold a photographed example of this type.
BrandStandard Telephones and Cables Limited
ClassCold-Cathode Gas-Filled Triode
BaseOctal
Construction
Primary TypeTriode
Envelopeglass
Sectionssingle
Filament / Heater
Absolute Maximum Ratings
Cathode Current30 mA
Audio Performance
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| relay operation | 60 V | — | — | — | 20 mA |
| counter applications | — | — | — | — | 2 mA |
Application Notes
The life expectancy of these valves is a function of cathode current. Deionisation time can be improved by a factor of three if the negative going pulse goes to -45V instead of zero.
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