Tube-number record
R51A
0 archive entries
R51A is a tube type in the TubeDatabase archive (class: Gas Phototube). Recorded specifications: brand Visitron, construction Other / special, socket 3-pin / Peewee, and maximum plate voltage 90 V. The archive does not yet hold a photographed example of this type.
BrandVisitron
ClassGas Phototube
Base3-pin / Peewee
Construction
Primary TypeOther / special
EnvelopeT55
SectionsSingle
Filament / Heater
Absolute Maximum Ratings
Plate Voltage90 V
Audio Performance
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Gas Amplification | 90 V | — | — | 12 | — |
Application Notes
Commonly used in portable 16 MM sound-on-film production equipment.
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