This LM380-based circuit was found in documentation from the 1980s. The components are current, and the transistor may be a general-purpose equivalent. Note the use of a medium impedance speaker.
November 2016 - Mouser Electronics is selling the Terasic Servomotor kit for the control of up to...
Found in a magazine 73 for radio amateurs of the 90s, this circuit shows how to supply a photo...
This Power supply is intended to Power small loads with currents up to 30 mA. The voltage depends...