A GU50 - ГУ 50 - LS50 pentode.
Military equipment!
GU-50 is also used in the audio frequency power amplifiers.
The pentode GU-50 uses radio-frequency oscillator and power amplifier in the metric wavelength range of RF equipment.
Cathode: indirectly heated, oxide coated.
Envelope: glass, there is no basis
Operating position: vertical connectors down.
heigh bartender. Special connection.
Weight: 100 g
PF capacitance between electrodes
The Grid: 14.0 + - 1.0. plate: 9.15 + - 1.15. Grid platform: <0.1.
Rated electrical characteristics
Heater voltage, V 6.12
Anode voltage of 800 V
2 grid voltage, V 250
1 grid voltage (bias) -40 + -10 V
Heater current, 765 mA + -65
Transconductance (at anode voltage of 800 V, 250 V power grid 2, 1 grid voltage increase is 5 V, the anode current of 50 mA) mA / V 4 + -1
Signal output *), W 60
Signal power to the heating voltage V * = 10.8), W.> 52 *) using the amplifier anode current of 150 mA, 1 grid voltage -100 V, 1 grid current 8 mA signal amplitude of 135 V, the operating frequency of 66.6 MHz.
maximum ratings
The heating voltage max, V
14.5
The heating voltage mini V
10.8
Anode voltage up to 46.1 MHz, V
1000
Anode voltage up to 66.6 MHz, V
800
Anode voltage up to 87.5 MHz, V
700
Anode voltage up to 120 MHz, V
600
Peak anode voltage max at V
3000
Grid voltage up to 2 V
250
During anode dissipation up to W
40
Anode dissipation up to 1 minute, and W
50
Grid loss up to 2 W
5
Grid 1dissipation max W
1
During max voltage between cathode and heater, V
200
Leak current heating up the cathode, IA
100
Anode current max mA
230
resistance heating up the cathode circuit, kOhm
5
Typical operation of radio
Anode voltage, V
1000
3 grid voltage, V
0
2 grid voltage, V
300
1 grid voltage (bias), V
-80
Amplitute excitation voltage, V
100
Anode current, mA
120
Grid current 2 mA
10
Transconductance mA / V
5
Effective oscillating electric, W
50
Maximum anode dissipation, W
40
Amplification coefficient of the triode segments: 1 cathode- Grid Grid 2
5
Resultant resistance, Ohm
4750
Maximum oscillation frequency, MHz
60
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