This circuit has tone control, and its power depends on the supply voltage. The circuit is from the Philips integrated circuits manual from 1990.
This Power supply is intended to Power small loads with currents up to 30 mA. The voltage depends...
This simple metal finder uses a 100 uA indicator. The exploration coil must be constructed in a...
This circuit generates a 20 MHz sinusoidal signal from a 10 MHz crystal. It is found in the 1992...