Tube-number record
GAS PHOTOTUBE
0 archive entries
GAS PHOTOTUBE is a tube type in the TubeDatabase archive (class: Blue-Sensitive Phototube). Recorded specifications: brand RCA, year 1947, construction Other / special, socket Octal, and maximum plate voltage 100 V. The archive does not yet hold a photographed example of this type.
BrandRCA
ClassBlue-Sensitive Phototube
BaseOctal
Construction
Primary TypeOther / special
EnvelopeT-9
Sections1
Filament / Heater
Absolute Maximum Ratings
Plate Voltage100 V
Cathode Current0.01 mA
Audio Performance
Key Features
- Blue-sensitive
- Side-on type
- Semi-cylindrical cathode
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Sensitivity Test | 90 V | — | 1000000 | — | — |
Application Notes
Average cathode current density should not exceed 30-60 uamp/sq. in. depending on rating used. Ambient temperature maximum is 75 C.
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