This 1969 Mullar circuit appears elsewhere on this site. The circuit uses germanium diodes and the indicator is microammeter with zero in the center of the scale.
Toshibas IC Brushless Motor Drivers Toshiba offers through Mouser Electronics a broad range of...
This circuit was found in an American magazine 73 for radio amateurs of the 80s. It is an...
This sophisticated repellent uses a double 555. We find it in an American documentation from the...