This circuit was found in a Japanese publication in 1975. It provides 30 W per channel using the SI-1030G modules. The module must be mounted on an excellent heat sink.
We found this circuit in an old publication. The circuit can be implemented with modern equivalent...
This circuit with transistors from a 1995 publication. The circuit is powered by a voltage taken...
This tiny photocell-powered audio oscillator was found in a book on transistors from the 1960s. The...