GI-23B (original box)

Description

The GI-23B triode generates and amplifies RF oscillations in pulsed operation with anode modulation in the decimetric wavelength range. Designed to generate and amplify high-frequency oscillations in the frequency range from 300 to 1650MHz in a pulsed operating mode with anode modulation. Indirectly heated oxide cathode. It is produced in ceramic-metal design with a radiator and cylindrical leads of the cathode, heater and grid.
Forced air cooling 24 m3/h.

Stamp of technical control department of the manufacturer “ ОТК “ 

GI – generator pulse;
23 – the number of the serial number of the development of this type of tube;
B – a letter indicating the type of forced cooling: B – air.

Technical specifications:

• Heater voltage (AC or DC): 12.6V
• Heater current: 2.3 – 2.6A
• Heater voltage (DC): 1.3kV
• Anode current: 110 – 200mA
• Mutual conductance: 26 – 36mA/V
• Inverse grid current: at most 50µА
• Penetration factor: 1 – 2%
• Peak output power (at peak anode voltage 10kV,
  peak anode current 12A, wavelength at most 28.8 cm,
  pulse duration 3-15 µsec.): at least 40kW
• Interelectrode capacitance, pF:
  input 14 – 18
  output: at most 0.16
  transfer: 5.5 – 6.5

Limiting performance:

• Heater voltage (AC or DC): 11.9 – 13.3V
• Peak anode voltage: 14kV
• Anode dissipation: 300W
• Grid dissipation:
  with thermocurrent about 5 mA: 25W
  neglecting thermocurrent: 10W
• Peak anode current (DC component): 15A
• Pulse duration: 15 µsec
• 1/duty factor: at least 200
• Resistance in grid circuit: 10kOhm
• Temperature:
  anode heat sink: 160 °C
  anode end face: 200 °C
  grid lead: 200 °C

Operating time not less than 1000 hours.