This circuit was found in a British documentation from 1969. It can be implemented with modern transistors. The pass band is 6 MHz.
This old configuration, using a unijunction transistor (UJT) controls a LED than blinks if an...
This circuit for loads up to 10 A was found in a 2005 Linear Technology documentation. The MOSFET...
circuit is used to increase the sensivity of a relay. A 50 to 100 mA relay can be triggered with...