50W Linear FM Amplifier with BLY90

This RF FM Amplifier is always essential for the amateur that wants it strengthens some small transmitter. The present circuit of BLY90 can give 50-60W power out with input control 15-20W in FM band II 88-108 MHz.

 FM amplifier schematic Circuit

Printed Circuit Board

FM Amplifier Parts List
C1-C4 = 10-80pF
C5 = 10nF
C6 = 1000pF
C7 = 100nF
C8 = 2200mF/35V
TR1 = BLY90
L1 = 1 Turn of diameter of 10mms, 1mm
L2 = 7 Turns of diameter of 10mms, 0,8mms
L3 = 3 Turns of diameter of 10mms, 1mm

Source: 50W FM Amplifier BLY90

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