This low power circuit can be powered with voltages from 1.8 V. We find it in a 80s Hands On Electronics. The load can be from 8 to 32 ohm.
This RCA / GE circuit from the 90s can be applied to any modern operational amplifier. The number...
Found in Popular Electronics from the 90s, this circuit turns off an appliance at the end of the...
Found in documentation from the 90s, this circuit is based on operational amplifiers of the time....