The purpose of this circuit is to measure the intensity of audio signals. We found it in the September 1990 issue of Radio Electronics magazine. The circuit works as a S meter.
This small shaver bender circuit makes it possible to use 220/240 V shavers on 110 V networks. The...
This receiver for the mid-wave band was found in a documentation from the 60's. The transistors are made...
This circuit, which uses only common transistors, was obtained from a 1988 publication, but can be...