The integrated circuit and configuration are uncommon. However, the sound quality is good. The circuit is from the 1983 Intersil Databook. The output transistors must be provided with heat sinks.
This circuit was found in an English magazine from 1973. The magazine no longer exists, but the...
This radio version of 1 transistor, extensively explored on this site and in this section, is from...
This dual control was based on Texas Instruments documentation for the CD4050. The circuit has two...