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.
June 2016 – Mouser Electronics already have in stock the TPS56C215 converter from Texas...
November 2016 - The On Semiconductor Reference Development Kit and WDK1.0GEVK Reference Kit can...
The critical component of this amplifier is the output transformer. We found the circuit in an old...