This circuit makes use of comparators and common operational amplifiers, having been found in Motorola Linear Interface ICs of 1993. The circuit requires symmetrical source.
Found in an American publication from 1968, this circuit generates pulses at a rate of 2,500 per...
The transistors on this circuit can be the BC548. The circuit is from English documentation from...
In the figure we have a stereo decoder from the 70's with pilot lamp for signal indication. The...