05-03-2011, 05:07 PM
I designed and built a power supply for a Sky Queen (article published in 2010 by Radio Bygones). Simple enough, using an LM338 regulator for the LT. It is fitted into a faux battery case of the correct size. Well worth building one of these units, I believe. Actually I've built several over the years and it isn't too difficult to keep the size down with a bit of care. Rob T is right about the limitations on portability, of course. If this is a priority, then an inverter driven by a pp3 or a PP3 series HT battery would seem to be the most obvious options.
-Tony
-Tony
