Lampa nadawcza GU-74B

Zastosowanie: wzmacniacze mocy KF (np. ACOM, ALPIN, i inne)

 NOMINAL ELECTRICAL PARAMETERS

• Heater voltage, V  12.6
• Heater current, A  3.6
• Mutual conductance (Va = 1KV, Vg2 = 300V, Ia = 600mA, change in Vg1 = 2.5V), mA/V:  32.5
• Anode current (Ia) with Va = 2.5KV, Vg2 = 300V, A:  >1.4
• Negative bias (Vg1) with Va = 1KV, Vg2 = 300V, Ia = 600mA, V:  18-32
• Negative cutoff bias (Vg1) with Va = 1KV, Vg2 = 300V, Ia = 15mA, V:  90
• input capacitance, pF  51
• output capacitance, at most, pF  11
• transfer capacitance, pF  <0.09
• Warm up time, s:  <150
•  AB1 Output power, Va = 2KV, Vg1 = -60V, Vg2 = 300V, Ig2 < 50mA, Freq. 0.1-1.0 MHz, W:  >550
• 3rd-order energy relative to carrier, Va = 2KV, Vg2 = 300V, Ig2 < 50mA, Vg1 = -70V, dB:  -28
• 5th-order energy relative to carrier, Va = 2KV, Vg2 = 300V, Ig2 < 50mA, Vg1 = -70V, dB:  -28
• Designed Tube Life (hours)  >1500

ELECTRICAL PARAMETER LIMITS

• Heater voltage, V  11.9-13.3
• Heater current, A  3.3-3.9
• input capacitance, pF  46-56
• output capacitance, pF  9-13
• Maximum CW Anode voltage (Va), KV:  2
• Maximum Instantaneous value Anode voltage (Va), KV:  4
• "Maximum" Control Grid voltage (Vg1), V  -150
• Maximum Screen Grid voltage (Vg2), V  300
• CW cathode current (Ic), A:  0.75
• Peak cathode current (Ic), A:  2.5
• Anode Dissipation, W:  600
• Screen Grid (G2) Dissipation, W:  15
• Control Grid (G1) Dissipation, W:  2
• Frequency, MHz:  <250

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