This circuit was obtained from Popular Electronics from June 1978. It doubles the input DC voltage. Obtained current is very low, serving only for polarization circuits.
This circuit was found in Electronics Now, it can be used with universal phones on a common...
Alorium Tech XLR8 Application Accelerator & Development Board is an Arduino-compatible board that...
This circuit was found in a publication in the 1950s, mainly applying to germanium transistors of the...