This frequency shift modulation circuit was found in the November 1994 issue of Electronics Now magazine. The circuit operates at low frequencies.
September 2016 - Mouser Electronics is already providing the QorIQ LS1012A from NXP, a processor...
The integrated circuit used in this filter is not very common today, but the configuration can be implemented...
This two-tone buzzer can be powered by a solar panel. The circuit is from a 1991 documentation. The...