This programmable sound circuit was found in the July 1978 issue of Radio Electronics magazine. It uses an integrated circuit of the time dedicated to producing effects.
This circuit maintains on a flashing LED at a frequency determined by the capacitor. The...
We got this circuit in an old publication from 1978. The circuit uses a phototransistor and an...
This simple LDO, or low voltage drop regulator was found in an Electronic Design from the 90s. The...