― Rangkaian Power Amplifier Pemancar FM ini sangat sederhana, namun kualitasnya cukup memuaskan. ∙ A very simple fm power amplifier which can deliver 4W rf power with 12V power supply and BLY87A or KT920A and 20W with BLY89A or KT925B. ∙ If you use BLY87A or KT920A the input power must be 0.5W and 4W if you use BLY89A or KT925B. This fm power amplifier is designed to work on 50 Ω antennas and a maximum power supply of 14V and in 88 108 MHz band. ∙ Use only metallic [...].