GU-32

TETRODE

The GU-32 beam-power double tetrode is used as an oscillator and a RF power amplifier operating in the metric wavelength range in RF equipment.

GENERAL
Cathode; indirectly heated, oxide-coated.
Envelope: glass, no-base.
Height: at most 88 mm.
Diameter: at most 52.5 mm.
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; I - alignment boss

BASIC DATA Electrical Parameters
Heater voltage, V	12.6
Heater current, A	0.7-0.9
Anode current (at anode voltaqe250 V grid 1 voltage 10 V of first tetrode, grid 1 voltage -100 V of second tetrode, grid 2 voltage 135 V), mA	18-42
Interelectrode capacitance, pF:
input	6.2-9.4
output	2.8-4.8
transfer at most	0.05
Output power, W, min at anode voltage 400 V, grid2 voltage at most 250 V anode current 19 mA	14
over 2 000 h of service	11

Limit Operating Values
Heater voltage, V:
with heaters connected in parallel	5.7-6.9
with heaters connected in series	11.4-13.8
Anode voltage, V	500
Grid 2 voltage, V	250
Dissipation, W:
anode	15
grid 2	5
Envelope temperature, °C	115

Characteristic Curve Showing Anode Dissipation versus Ambient Temperature (at bulb temperature T_b 115°C)

Main Menu | All Types | Contact Us | Order Form | Warranty | Quality | Company Profile