A couple of years ago (gosh – has it been that long?) I attempted to build the ZL2BMI DSB transceiver for 80M. It was an appealing design, being simple, and capable of being built into a compact space. Eric, the designer, had originally conceived it in the mid 1980’s as a very small rig to […]
In the last blog post, I described the receiver part of my build of the ZL2BMI DSB transceiver and noted that I’d been having problems with the TX transmitting a constant carrier, even with no modulation. Everything seemed to be OK up to and including when I built the driver stage. On adding the BD139-16 […]
A few weeks ago, Jason NT7S mentioned the ZL2BMI DSB transceiver as a rig I might be interested in building. He was right – I had seen it in SPRAT but for some reason hadn’t seriously considered making it into a project. The mention from him somehow got me to take another look at it […]
Dave Richards AA7EE 