GI-19B
High-power pulse generator triode
Description
Purpose and operating mode
The GI-19B is a high-power pulse generator triode for producing VHF oscillations in common-grid self-excited circuits. It operates with pulse anode modulation and is intended for equipment that requires short, high-power radio-frequency pulses rather than continuous audio-frequency amplification.
Full descriptionCollapse description
Construction and cooling
The tube has a metal-glass construction with large cylindrical electrode terminals. Its anode requires forced-air cooling with an airflow of at least 180 m³/h. The nominal heater supply is 7.3 V at 20 ± 3 A, while the specified pulse output is at least 230 kW for a 10 µs pulse and a minimum duty factor of 500.
Key operating data
GI-19B is a heavy industrial tube: its mass is approximately 2.8 kg. Installation must preserve the required airflow and the clearances specified for high-voltage pulse equipment. Before replacement, compare the full designation, terminal arrangement, cooling duct and operating mode with the equipment documentation.
Selection and pre-installation checks
The model marking and the condition of the glass-to-metal seals should be checked during incoming inspection. A visually similar generator tube is not a substitute unless the electrical ratings and mechanical interface are explicitly confirmed.
General operating principles are described in the vacuum tube reference article. Other devices of this class are listed under generator and modulator tubes.
Technical details
- Designation
- GI-19B
- Device type
- High-power pulse generator triode
- Operating range
- VHF / metre-wave band
- Circuit configuration
- Common-grid, self-excited generator
- Modulation
- Pulse anode modulation
All specificationsCollapse specifications
- Construction
- Metal-glass
- Heater voltage
- 7.3 V nominal; 7.1–7.5 V operating limits
- Heater current
- 20 ± 3 A
- Minimum pulse output power
- 230 kW
- Pulse duration
- 10 µs
- Minimum duty factor
- 500
- Minimum cooling airflow
- 180 m³/h, forced air
- Maximum anode dissipation
- 1 kW
- Minimum service life
- 300 h
- Mass
- Approximately 2.8 kg
Payment & delivery
Orders ship from our hub in Dubai. Partner stock is first transferred to Dubai, then shipped to you.
Dubai stock: 100% before dispatch. Partner stock (Remote stock) and Pre-order: 50% advance payment to start the order and 50% before shipment from Dubai to you.
Availability, lead time, delivery cost and payment terms are confirmed for your order before payment.
Payment & delivery terms