This circuit makes use of a stroboscopic tube, a component that no longer exists today. The circuit is from the 70's and can be adapted to use mains voltage.
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...