This logic circuit that transfers the level from one gate to the next with each clock pulse was found in the September 1985 issue of Radio Electronics magazine.
Using an era germanium transistor, this 1960s circuit reverses the phase of relatively low...
This step of two transistors has a high input impedance due to the use of FET. We can use BF245 for...
This simple Bargraph photometer with 4 LEDs was found in a 1997 documentation. The scale is...