GI-30
Double beam pulse tetrode
Description
Purpose and operating mode
The GI-30 is a double beam tetrode used to generate, amplify and modulate high-frequency oscillations in pulse equipment. Two symmetrical electrode systems are housed in one glass envelope, allowing the device to handle short high-current pulses in RF generator and amplifier stages.
Full descriptionCollapse description
Construction and cooling
The tube has a clear baseless glass envelope with two anode terminals at the top and a circular pin arrangement below. Its indirectly heated oxide cathode may be supplied at 6.3 V with the heater sections in parallel or at 12.6 V with them in series.
Key operating data
Reference limits include a 5 kV anode pulse voltage, at least 9 A pulse anode current and a maximum pulse duration of 1 µs. The average anode dissipation is limited to 7.5 W per section. Overall dimensions are approximately 110 mm in height and 61 mm in diameter; mass is about 125 g.
Selection and pre-installation checks
GI-30 must be installed vertically with the envelope upward. Before fitting, inspect the glass, top seals and pins, then verify the heater connection and pulse circuit. Similar double-beam tubes are not automatically interchangeable.
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-30
- Device type
- Double beam pulse tetrode
- Purpose
- RF generation, amplification and pulse modulation
- Envelope
- Clear glass, baseless construction
- Cathode
- Indirectly heated oxide cathode
All specificationsCollapse specifications
- Heater voltage
- 6.3 V parallel or 12.6 V series
- Heater current
- 2.2 A parallel or 1.1 A series
- Maximum pulse anode voltage
- 5 kV
- Minimum pulse anode current
- 9 A
- Maximum pulse duration
- 1 µs
- Maximum average anode dissipation
- 7.5 W per section
- Maximum envelope temperature
- 200 °C
- Dimensions
- Approximately 110 × 61 mm
- Mass
- Approximately 125 g
- Operating position
- Vertical, envelope upward
- Minimum service life
- 1000 h
Payment & delivery
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Availability, lead time, delivery cost and payment terms are confirmed for your order before payment.
Payment & delivery terms