GT1
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BrandOsram
ClassGasfilled Relay / Mercury Vapour Rectifier
Base5-pin
Filament4V @ 1300mA
Construction
Primary TypeGasfilled Relay
Rectifier TypeMercury Vapour
EnvelopeGlass Bulb
SectionsSingle
Filament / Heater
Heater NotesIndirectly heated cathode
Absolute Maximum Ratings
Plate Voltage1000 V
Cathode Current1000 mA
Audio Performance
Key Features
- Hot-Cathode
- Grid-Controlled
- Trigger device
- Mercury Vapour filled
- Indirectly Heated
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Rectifier/Trigger | 15V | - | - | 22.5 | 300mA |
Application Notes
It is essential that the cathode reach operating temperature (1 minute) before anode current flows. A resistance of at least 1,000 ohms should be in the grid circuit. In DC circuits, the anode current can only be stopped by breaking the circuit or removing anode voltage for 10-1000 microseconds.
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