This digital signal attenuator was found in a 90s Electronic Design. The circuit operates at frequencies that are determined by the characteristics of the attenuator circuit.
We found this circuit for old tape recorders in the December 1972 Radio Electronics magazine. The...
I found this simple circuit from an English magazine from 1984. The circuit can be easily...
This windshield wiper interval was found in an old documentation. The SCR can be the C106 and the...