This circuit was found in an English publication from the 70s, an article that teaches how to calculate instruments. The circuit is still current and can be built with an analog indicator of 100 uA.
We found this circuit in an old documentation from the 70s. Its purpose is to indicate the...
This circuit uses the flip-flops from the previous circuit to implement a 3-digit binary counter. The...
Found in American documentation from 1969, this circuit produces a pulsating waveform being...