This simple timer with unijunction transistor was found in an old American technical documentation. We can use 2N2646 for the unijunction and BC548 for the transistor.
This unregulated symmetrical power supply was found in the August 1982 issue of Radio Electronics...
June 2017 - Mouser Electronics is already shipping the new ROHM DC brushed motor drivers specified for 5.5 V...
This simple radio receiver can pick up AM stations in the MW range from 520 to 1600 kHz using a...