Found in American documentation from the 1980s, this circuit uses transistors from that time. It generates increasing and decreasing tones when we press and release the push button.
The circuit shown in the figure can be used to detect the operation of infrared sources whose...
We found this circuit in the March 1993 issue of Electronis Now magazine. The circuit uses common...
Figure 1 shows a hal-wave voltage doubler operating with the Power-supply voltage. Output current...