This circuit was found in the March 1982 Radio Electronics magazine. The component is a special circuit that generates programmed melodies selected by the switches.
We have already presented this circuit elsewhere on our website. This version of an English...
With this circuit it is possible to obtain an intermediate voltage of 6 V from a 12 V battery with...
This 9 V battery eliminator was found in Radio Electronics magazine from June 1966. The transistor is of...