GU-32V

TETRODE

The GU-32V beam-power double tetrode is used as an oscillator and a power amplifier in RF equipment.

GENERAL
Cathode: indirectly heated, oxide-coated.
Envelope: glass, no-base.
Mass: at most 100 g.

1 - heater; 2 - grid 1 of second tetrode; 3 - grid 2; 4 - cathode and beam-forming plates; 5 - heater (centre tap); 6 - grid 1 of first tetrode; 7 - heater; A1 - anode of first tetrode - top lead; A2 - anode of second tetrode - top lead

BASIC DATA Electrical Parameters
Heater voltage, V	12.6
Heater current, A	0.72-0.88
Mutual conductance (at anode voltage 250 V, grid 2 voltage 135 V, grid 1 voltage -10 V of first tetrode, grid 1 voltage -100 V of second tetrode), mA/V	3-4.8
Anode current (at anode voltage 250 V, grid 2 voltage 135 V, grid 1 voltage -10 V of first tetrode, grid 1 voltage -100 V of second tetrode), mA	18-42
Interelectrode capacitance, pF:
input	6.2-9.4
output	3-4.4
transfer, at most	0.05
Output power (at anode voltage 400 V, grid 2 voltage at most 250 V, frequency 200 MHz), W, at least	14
Electrical parameters over 500 h of service:
oscillator power, W, at least	11
reduction in oscillator power at heater voltage 11.3 V, %, at most	20

Limit Operating Values
Heater voltage. V:
with heaters connected in series	11.3-13.9
with heaters connected in parallel	5.7-6.9
Anode voltage, V	500
Grid 2 voltage, V	250
Dissipation. W:
anode	15
grid 2	5

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