Simple FET class-A DC PA circuit diagram

Published:2011/4/6 4:19:00 Author:Rebekka | Keyword: Simple FET , class-A DC | From:SeekIC

Using AP500A as a promotion level. To handpick a pair of Hitachipipe K1058/J162 in the last stage. K1 and K2 are toggle switches. K1 canchange input signal channels; K2 used for loading disconnect when you shut down it and avoiding impingement. After installation rightly, you only need to adjust 4.7kΩ potentiometer and make the quiescent current of final amplifier tube 300mA.



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