GDT120M
0 Tubes in archive
ClassTrigger Tube
BaseB7G
Construction
Primary TypePrimed Trigger Tube
EnvelopeGlass
SectionsTrigger tube with light diode
Filament / Heater
Absolute Maximum Ratings
Plate Voltage340 V
Grid 1 Voltage155 V
Cathode Current9 mA
Audio Performance
Key Features
- Inexpensive
- Integrated light diode
- Suitable for operation in poor light conditions
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Recommended Operating Conditions | 315V | - | 47000 | - | 3.5mA |
Application Notes
Tubes may exhibit voltage jumps of up to 20 V in operation. Trigger bias +80 V with respect to cathode.
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