This circuit was found in a 90s Electronic Design. The integrated circuits are from that time. Frequency multiplication can be done for odd integers.
The frequency of the produced sound depends on the capacitor. With capacitors of known values, you can...
This circuit is from a 1982 publication. How about waking up to the first rays of sunlight? No,...
July 2017 - Microchip's new MCP39F511 demonstration and development boards, which consist of...