This circuit is based on the DCP010515 integrated circuit found in the August 1998 issue of Electronics Now magazine. This integrated circuit is not very common these days.
This circuit decodes a 1800 Hz tone used in communications. The circuit is from an American...
These two circuits were found in Radio Electronics magazine from February 1960. The transistor is a power...
With the development and availability of small LCD screens for automotive use, especially in...