This circuit was found in the 1992 Radio Electronics Handbook. It is used to test VCR recording heads. It can also be used for other purposes.
This anti-theft circuit was found in a 1985 documentation. It uses common components that can...
This circuit is interleaved with the source of a portable AM or FM radio previously tuned to a...
In the figure we show how to expand the count from 26 to 32 with 4017 CMOS integrated circuits. The...