This circuit was obtained from Linear Technology documentation from the 80's. Powered by 5 V it can be used as a shield. The components are from the era.
This circuit uses CMOS integrated circuits and can operate with CMOS logic from 3 to 15 V or TTL...
This is one of the many approaches we have on the site for this low power 0.5 W amp using the...
Found in Popular Electronics from the 1980s, this circuit can use more modern transistors such as...