double generator tetrode
GU-19-1 – The dual generator tetrode is designed to generate oscillations,
power amplification, frequency multiplication and modulation of oscillations in
radio engineering devices. The cathode is an oxide of indirect incandescence.
Execution – glass basement.
Weight not more than 100 g.
Basic parameters:
at Uh=6.3 V, Ua=350 V, Uc2=250 V, Ia=40 mA
Incandescent current 2 ± 0.2 A
Anode current (at U’s1 = -17 V) 40 ± 20 mA
The current of the 2nd grid is 8 mA
The current of the 1st grid is reversed (at Ia = 50 mA) 10 Ma
The steepness of the characteristic (when changing Uc by 0.5 V) is 4.5 mA/V
Oscillating power (at Ia = 240 mA) 45 W
Interelectrode capacitances, pF:
input 10 ± 2
Output 3.5 ± 0.5
passing 0.08
Durability average 1000 h
Durability criterion, oscillatory power 36 W
Maximum operational data:
Glow voltage 5.7 – 6.9 V
Anode voltage 250 V
The voltage of the 2nd grid is 250 V
The voltage of the 1st grid is negative 175 V
The voltage between the cathode and the heater is 150 V
Cathode current 280 mA
Power dissipated by the anode 40 W
Power dissipated by the 2nd grid 6 W
The power dissipated by the first grids is 2 watts
Operating frequency 500 MHz
Cylinder temperature 250 C
Ambient operating temperature range from -60 to +70 C
It is used in medical equipment: UHF-30 apparatus.
