4m Transverter

The 28Mhz to 70Mhz transverter was sold as a complete kit by Bo, OZ2M.

More information can be found on the OZ2M website.

The 4m amplifier was designed by Geoff GI0GDP and delivers a very stable 10w output from a RD15HVF1 MOSFET. I had a few PCB's made to the dimensions of the tinplate box and I still have a couple of spare PCB's left over.

Geoff's circuit diagram for the 10w linear amplifer.

Most of the components were sourced from the Enigma Component Shop.