This balance indicator for stereo amplifiers was found in an 80's Elektor. The components used are common. Zeners are 1.8 V or close to that value.
This simple radio circuit was obtained in a Japanese publication in 1967. The circuit uses...
This circuit appeared in the June 1990 issue of Radio Electronics magazine. Integrated circuits must...
In the figure we have a circuit that fires from a positive pulse of short duration applied to its...