Tube-number record
R50A
0 archive entries
R50A is a tube type in the TubeDatabase archive (class: Gas Phototube). Recorded specifications: construction Other / special and maximum plate voltage 90 V. The archive does not yet hold a photographed example of this type.
ClassGas Phototube
Construction
Primary TypeOther / special
EnvelopeMidget End View
SectionsSingle
Filament / Heater
Absolute Maximum Ratings
Plate Voltage90 V
Audio Performance
Key Features
- Midget end view tube
- Designed for applications where space limitation is the controlling factor
- Adaptable to extremely small electronic control devices
- Ideal for multiple phototube banks
- Fits perfectly with compact designs of coin operated machines
Application Notes
Especially adaptable to extremely small electronic control devices. Ideal for controlling the moving pattern of electric signs.
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