This is an amplifier from the 70s. The integrated circuit used is uncommon today and the power supplied is not the greatest. The circuit is from Motorola.
This is a traditional complementary configuration that provides good audio power with excellent...
The CA3020 integrated circuit was one of the first commercial types, sold in the 1960s. The...
This oscillator for various frequencies was obtained from a 1980s telecom documentation. The...