Tube-number record
OA5
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BrandSYLVANIA
ClassCold cathode trigger tube
BaseMiniature 7-pin (B7G)
Construction
Primary TypeOther / special
EnvelopeMiniature T5-1/2
Base MaterialMiniature
SectionsSingle
Filament / Heater
Absolute Maximum Ratings
Plate Voltage1000 V
Plate Dissipation1 W
Grid 1 Voltage90 V
Cathode Current10000 mA
Audio Performance
Key Features
- Ruggedized
- Inert-gas-filled
- Stable triggering characteristics
- Short delay time
- Low trigger current requirements
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Switching Service | 750 V | — | — | — | — |
Application Notes
Specifically designed for electronic relay and switching service involving extremely high instantaneous peak currents. Ideal for triggering flash tubes in electronic photoflash equipment, depth recorders, and stroboscopic work. Can be triggered directly by phototubes.
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