This battery-powered micropower supply was shown in Radio Electronics magazine in 1991. The maximum current is 170 mA. and the integrated circuit is the MAX655 from Maxim.
The coils determine the frequency of this oscillator that we found in the January 1996 issue of...
Found in a 1969 documentation, this neon lamp circuit may have the number of steps increased. The power...
The first transformer is a driver found on transistor radios and the second a small output...