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GU-35B
POWER TRANSMITTING TETRODE


The GU-35B is a glass-metal forced-air cooled power tetrode intended for use in VHF-TV service with an output power of 3 kW at peak synchronizing level.

CHARACTERISTICS

Anode Dissipation ....................... 3.5 k W
Screen Dissipation ...................... 110 W
Grid Dissipation .......................... 45 W
Frequency for Max. Ratings ........ 250 MHz
Filament....................................... Thoriated
Tungsten
Heater Voltage ............................ 6.3 V
Heater current ............................. 38 A
Amplification Factor
at Ua = 1 kV; Ug2 = 500 and 800V; Ia = 1 A.......................................

11
Transconductance at Ua = 1 kV;
Ug2 = 800V; Ia = 1 A and 1.5 A
24 mA/V

Capacitance (Gnd.Cath.Connection)
     Input ......................................
     Output ...................................
     Feed-through .........................


56 pF
14 pF
<0.7 pF
Max. Seal and Envelope 
Temperature ...............................
175° C
Maximum Length ........................ 207 mm
Maximum Diameter .................... 101 mm
Weight (approximate) ................ 2.5 kg
Operating Position ..................... Vertical, base up
or down
Blower ...................................... 400 m3/h

 

Class of
Operation 		Type of Service Max. Ratings Typical Operation (grid-driven)
Anode
Voltage,
kV 		Screen
Voltage,
 V		 Anode
Voltage,
kV 		Screen
Voltage,
V 		Anode
Current,
A 		Drive Pover
W		 Output
Power
kW
AB1 Visual TV Serbvice 5

830

 3.2 800 1.7 130 3*

*Peak sinc.level

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