Archive for April, 2008

88 108 MHz 40W wideband power amplifier MRF171A

One wideband fm power amplifier designed with MRF 171A MosFet transistor. The output rf power is somewhere around 40W , the gains is 20dB ( 100 X ) . The input rf power is 400mW.


300W pushpull 144MHz power amplifier

300W 144Mhz push pull power amplifier with MRF141G MosFET transistor.
144MHz 300W schematic


2m 144MHz push pull amplifier DV28120T

2 meters 144MHz push pull amplifier wich can generate 200W, how does it sound ? Sounds delicious with 2 DV28120T transistors.