70Mhz Rf Power Amplifier Circuit

Posted on Apr 6, 2012

The SD1143 transistor provides a gain of about 14 dB in this circuit. It uses the fact that a 175-MHz device has a much higher gain when used at lower frequencies. The amplifier was originally designed to be used with a transverter.

70Mhz Rf Power Amplifier Circuit
Click here to download the full size of the above Circuit.

The output is 8 to 10 W for a 300- to 500-mW input.

Leave Comment

characters left:

New Circuits



Popular Circuits

High Impedance Voltmeter LM358
30m Band CW-Transceiver
AC relay using two photon couplers
musical continuity
Three-State Continuity Tester
Doorbell for the Deafs
Switch-Mode Power Supply
2Digit up/down Counter
7W Audio Power Amplifier LF356
2Y- connection two-speed motor contactor control one circuit