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> New gu-74B / 4CX800 russian power tetrode in box
New gu-74B / 4CX800 russian power tetrode in box
New GU-74B - Russian Power Tetrode
The GU-74B tetrode is used in wideband nontunable amplifiers and for single-sideband power amplification in stationary and mobile RF equipment.
Cathode: indirectly heated, oxide-coated.
1 - grid 1; 2, 4, 6 - cathode; 3, 7 - heater; 5, C2 - grid 2; A - anode; I - contact surfaces
OPERATING ENVIRONMENTAL CONDITIONS
Multiple impacts with acceleration, m/s²
Relative humidity at up to +25 °C, %
Mutual conductance (at anode voltage 1,000 V, grid 2 voltage 300 V, grid 1 voltage change ±2.5 V, anode current 600 mA), mA/V
Anode current (at anode voltage 250 V, grid 2 voltage 300 V), mA, at least
Negative bias voltage (at anode voltage 1,000 V, grid 2 voltage 300 V, anode current 600 mA), absolute value, V
Negative cutoff voltage (at anode voltage 2,500 V, grid 2 voltage 300 V, anode current 15 mA), absolute value, V, at most
Interelectrode capacitance, pF:
Cathode heating time (at heater voltage 12.6 V, anode voltage 1,000 V, grid 2 voltage 300 V), s, at most
Output power under conditions of class AB1 (at anode voltage 2,000 V, grid 2 voltage 300 V, grid 1 voltage -60 V, grid 2 current at most 50 mA, frequency 0.1-1.0 MHz), W, least
Relative level of combination components (at anode voltage 2,000 V, grid 2 voltage 300 V, grid 1 voltage -70 V, grid 2 current at most 50mA), dB:
third-order components, at most
fifth-order components, at most
Output power under conditions of class ? (at anode voltage 1,500 V, grid 2 voltage 275 V, grid 1 voltage -45 V, grid 2 current at most 60 mA), W, at least
Output power under conditions of class AB1 over 1,000 h of service, W, at least
Negative grid 1 voltage, absolute value, V
Check our store for another tubes:
5C8S 6F3P 6K4P 6N1P 6N23P 6N3P 6N6P 6N8S 6N9S 6N9S 6P14P 6P33S 6P3S-E 6P45S 6S33S-V 6S41S 6S45P-E 6S4S 6ZH9P-E GI-7BT GM-70 GS-36B GU-74B IN-1 IN-14 IN-17 IN-2
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