Relays up to 100 mA can be driven by the 555 with the recommended circuit. The circuit is from an article in the September 1992 Radio Electronics magazine.
This circuit is suggested by the National semiconductor and is based on an increased power...
The filter shown in the figure, suggested by Motorola, operates at a cut-off frequency of 1 kHz,...
August 2016 - It can be obtained from Mouser Electronics new wireless 3W transmitters from RTD to...