This circuit allows you to simulate an analog telephone line for the repair and testing of devices. The circuit is from 1994 and all the components used are common.
This capacitor leak detector was found at Popular Electronics in June 1991. The magazine no longer...
This circuit can generate signals of frequencies up to 1 or 2 MHz, tuned in the capacitor. The...
This circuit switched with the help of small inductors produces a peak voltage above 20 V that is...