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.
Found in a 1967 Ferranti documentation, this circuit uses a LDR from that time as a sensor....
This circuit can generate signals from 100 kHz to 1 MHz depending on the L1 coil. For the medium...
This two-transistor circuit was found in the January 1994 issue of Electronics Now. The circuit can...