|
Given how often a signal tracer is actually on, I would use a strong of 9v batteries from a dollar store in series for B and some D cells in parallel for A. After all
Big advantage of a battery powered signal tracer is it's not referenced to ground, you will lose this advantage building a power supply. You would
Have to do a whole lot of signal
Tracing to run down the batteries fast, it's a piece of test
Gear not a radio which will be on for hours.
|