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.
This sensitive multi-circuit and component prover uses two transistors and has a switch position where...
The LM117 (217 and 317) provides 1.2 A with output up to 25 V and is manufactured by several...
Found in a 1980s documentation, this amplifier uses an integrated circuit that is not easy to...