This transmitter for the 3.5 and 7 MHz ham radio was found in a 1950s Japan publication. No information was given on the coils and the power supply.
August 2017 - Texas Instruments' new integrated circuit BQ25872, a 7-A keyed battery charger with...
This sensitive circuit produces na outpu signal when a body is detected by the sensor. The circuit...
The AT21CS11 memory device offers an extended voltage range to accommodate lithium-ion battery...