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 a 1973 Radio Elettronica magazine. The Italian magazine no longer...
This filter was found in an 80's English publication. However, it can be implemented with modern...
The circuit shown enables dynamic diode testing with an oscilloscope. We found this configuration in a...