The transistor in this project found in the July 1994 issue of Electronics Now magazine can be any general-purpose type. The circuit is powered by the relay voltage up to 12 V.
Microchip's EQCO62X20 6.25Gbps Asymmetric Coax Equalizer is a driver/equalizer chipset that forms...
When the sensor, an ordinary photo-transistor, receives light, the relay closes its contacts. The...
This input stage has unit gain but a high input impedance and low output impedance. The circuit is...