Found in American documentation from the 90s, this circuit uses components that are still common today. The 15 V power supply must be symmetrical.
This circuit causes an LED to flash if the monitored voltage exceeds the value set in the pot. The...
This circuit is from a Radio Electronics magazine from August 1990. The indicator module is of a...
The modified Hartley oscillator seen in the figure can generate signals ranging from 3 MHz to 10...