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> Russian soviet tube GU43B tetrode 4CX1000 ham radio
Russian soviet tube GU43B tetrode 4CX1000 ham radio
C1 - grid 1; KP - cathode & heater; P - heater; C2 - grid 2; A - anode
ENVIRONMENTAL OPERATING CONDITIONS
Relative humidity at up to +40 C, %
Mutual conductance (Va = 1KV, Vg2 = 300V, Ia = 600mA, change in Vg1 = 2.5V), mA/V:
Anode current (Ia) with Va = 3KV, Vg1 = -50V, Vg2 = 350V, A:
Negative bias (Vg1) with Va = 1KV, Vg2 = 350V, Ia > 800mA, V:
output capacitance, at most, pF
AB1 Output, Va = 3KV, Ia ~0.9A, Vg1 = -50V, Vg2 = 350V, Ig1 < 0mA, Ig2 < 80mA, KW:
Maximum CW Anode voltage (Va), KV:
"Maximum" Control Grid voltage (Vg1), V
Maximum Screen Grid voltage (Vg2), V
Screen Grid (G2) Dissipation, W:
Control Grid (G1) Dissipation, W:
Temperature at envelope (hottest point), C
The GU-43B tetrode is used for continuous operation
at frequencies up to 100 MHz in separately - or self-excited oscillator circuits and
as linear power amplifiers in RF equipment.
Made by Poljaron, Lviv (Ukraine)
This tube is generally considered analogous to the 4CX1000.
All insulators are new. In factory packing paper.
