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 monostable is triggered by the falling edge of the input signal, just adding an inverter...
This amplifier can be powered with voltages from 9 to 14 V providing 7W of maximum power under a 8 ohms...
This circuit is from 1972 documentation. The circuit detects when the voltage input is in the...