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.
Found in a 1965 Electronic Design, this circuit generates adjustable pulses between 200 uA and 10...
We found this circuit in the 1982 SGS Linear Integrated Circuits manual. The transistor supports...
This circuit can equip the electronics practitioner's bench with an excellent number of resources. In...