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.
Found in a 1969 EDN, this high current circuit, not indicated in the documentation, uses...
September 2016 - Mouser Electronics is providing new ultraviolet LEDs VLMU1610 of Vishay suitable...
Found in Motorola's 1968 power circuit manual, this circuit has a high input voltage and no...