SHANDOR Ltd. Plovdiv, Bulgaria

 

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GU-68A / -68

TRIODE

30 .

- .

- : - 120 /; - 200 3/;

24 .

- -68 / GU68A

 

 

OPERATING ENVIRONMENTAL CONDITIONS

Ambient temperature, C

-10 to +55

Relative humidity at up to +25 C, %

98

 

BASIC DATA
Electrical Parameters

Filament voltage, V

20

Filament current, A

300-330

Mutual conductance (at anode voltage 1 kV, anode currents 10 and 14A),mA/V

115-145

Gain coefficient (at anode voltages 1 and 2 kV, anode current 10 A)

30-38

Anode current (at anode voltage 0.3 kV, grid voltage 100 V), A, at least

8

Negative cutoff voltage (at anode voltage 10 kV, anode current 0.1 A), absolute value, V, at most

400

Interelectrode capacitance, pF:

input, at most

300

output, at most

6

transfer, at most

105

Output power (at 30 MHz, at filament voltage 20 V and anode voltage 12 kV), kW

250

 

Limit Operating Values

Filament voltage (AC or DC), V

19-21

Anode voltage (DC), kV

12

Negative outoff voltage, absolute value, kV

1.5

Filament starting current, A

450

Dissipation, kW:

anode

130

grid

2.3

Operating frequency, MHz

30

Temperature at stem and metal-to-ceramic seals, C

175

 

gu-68p(2)00031.jpg gu-68p(2)00032.jpg

 

________________________________________________________________________________________________________

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