Suggested by National Semiconductor in documentation from the 90s, this circuit uses a switched regulator of the time. The circuit is suitable for NiCad battery charges.
This gun-like sound effects circuit is based on the PLL4066. The circuit was found in the December...
Two operational are used on this triangular-rectangular oscillator suggested by Motorola in its...
This circuit works directly connected to the network and special care must be taken with its...