02-11-2018, 10:02 AM
A couple of weeks ago I put together a little signal generator for a specific purpose. In it I used a 1j29b valve at 50V, using boost modules for HT and a buck for the 1.25V supply I use for heater supply (further dropped by heater choke), all powered via the 9V transformer output I used with the semiconductor side. The project, in some ways, was an academic exercise as I used an Arduino Nano for frequency generation plus transistors so was a hybrid in a big way, but did usefully confirm several things and does work for what I designed it for.
Tracy
Tracy
