This circuit was found in a British documentation from 1969. It can be implemented with modern transistors. The pass band is 6 MHz.
Microchip Continues Expansion of AVR Microcontroller Product Line with Addition of Three New...
Mouser Electronics has in stock Amphenol FCI Booltrack ™ connectors for robust connectivity...
This basic circuit was found in RCA / GE documentation from the 90s. In it we have the way to...