Published in an old Popular Electronics, this circuit makes use of components that are still current. The circuit must be powered with 9 V and eventually adapted to function as a shield.
August 2017 - STMicroelectronics' BlueCoin development environment is available at Mouser...
This amplifier was obtained from the CA3140 datasheet, an operational amplifier with JFET at the...
September 2017 - Vishay Siliconix SQ MOSFETs for automotive use are in stock for immediate...