This Mullard circuit was found in a 1969 documentation. It uses complementary transistors on the output and does not need a transformer. The bandwidth goes from 100 to 20 000 Hz.
This tone control was obtained from the CA3140 datasheet, originally created by RCA. The CA3140...
IGBTs are widely used in frequency inverters, power controllers, switched sources and DC/DC...
With a NAND trigger we can achieve pulse delay for digital applications in a relatively simple way,...