#side(Hint) #author("2023-08-12T06:16:29+00:00","default:hiroshi","hiroshi") *Discretely Assembled Voltage Amplifier [#ha34e20c] #ref(amp_diagram.JPG,left,around,wrap,28%) #ref(amp_response.JPG,left,around,wrap,31%) Input signal to the op-amp (LF356) is amplified by the push-pull transistors up to +/- 300 V. Complimentary transistors should be choosen for Tr1 ~ Tr 8. For high voltage bipolar transistors (2SC3632 and 2SA1015, complementary), consult with NEC datasheet (Bipolar --> Power Transistor --> ...)