This circuit was found in a Signetics documentation from the 1980s. The integrated is a PLL and the SCR is a general purpose type The pitch frequency is given by R1 and C1 as formula next to the diagram.
The 78XX series voltage regulator integrated circuits do not support an input voltage greater than...
This circuit is from a 2001 documentation used for old analog televisions. However, if the reader...
November 2016 - The new self-adhesive surface temperature sensors of the Amphenol JS series can...