1200_W_PEP_POWER_AMPLIFIER

Published:2009/7/14 2:00:00 Author:May | From:SeekIC

Ceramic tetrodes are operated as low-mu triodes, with control grids tied to cathodes. Amplifier takes about 200-W drive. Tuned-cathode input circuit presents better load to exciter. Bias is developed through 33K cathode resistor that is shorted out by relay during operation. In standby mode, plate current is virtually zero. Article covers construction and operation, with emphasis on proper cooling of tubes. Separate tuned circuits are required for each amateur band. L1 and L2 are 0.15 μH, L3 and L4 are 0.31 μH, and L5 is 1.3 μH. PC-1 and PC-2 are 3 turns No. 16 enamel wound on 50-ohm 2-W carbon resistor-S. W. Hochman, The Ample Amplifier, 73Magazine, March 1973, p 50-54.



Reprinted Url Of This Article:
http://www.seekic.com/circuit_diagram/Amplifier_Circuit/1200_W_PEP_POWER_AMPLIFIER.html

Print this Page | Comments | Reading(3)