This wide-range radiation monitor was found in a 1980s documentation. The circuit uses a diode as a sensor and is quite critical requiring shielding shown in dashes to prevent snoring due to gain.
This unijunction transistor oscillator is intended for Morse code practice. The circuit is from an...
This basic tone control circuit employs a Philips NE5538 operational amplifier, but can be adapted to work...
August 2016 - It can be obtained from Mouser Electronics MDS adapters for medical use from Delta...