Tube-number record
PHOTOTUBE
0 archive entries
PHOTOTUBE is a tube type in the TubeDatabase archive (class: Gas Phototube). Recorded specifications: brand Visitron, construction Other / special, and maximum plate voltage 90 V. The archive does not yet hold a photographed example of this type.
BrandVisitron
ClassGas Phototube
Construction
Primary TypeOther / special
EnvelopeT7
SectionsSingle
Filament / Heater
Absolute Maximum Ratings
Plate Voltage90 V
Audio Performance
Key Features
- Sturdy construction
- Designed to withstand shock
- Infra-red sensitive
Application Notes
Preferred type for use in portable 16 MM sound-on-film projection equipment.
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