i was doing some thinking (OUCH)
use two 6V batteries in parallel to charge them, and a DPDT switch wired between them to change parallel/series to get 12V when i need it.
how could i do this with just diodes to isolate them
is there a dc dc power supply that doesn't cost $300
has anyone made one from old microwave or TV parts
i'm serious
thx

" the first rule of the intelligent tinkerer is to save all the parts"
aldo leopold