This isolation circuit for audio signals was found in the August 1992 issue of Radio Electronics magazine. The circuit can be applied to other operational amplifiers.
This high-gain circuit uses junction FETs (JFETs) and must be powered by somewhat high voltages. The...
This circuit counts 1 per second, displaying the value in binary. The circuit is TTL and must be...
Critical components of this project are the Geiger tube and the 300V battery. The battery can be...