This circuit was found in an old Electronic Design. It makes use of sidacs and operational not very common today. The power supply must be symmetrical.
Rapid Prototyping Boards for 32-bit Applications Include Peripherals, Easy-to-use Interface and...
A stereo digital mixer using the 4053 is built as shown in figure bellow. The IC must be powered...
This commercial receiver from the year 1958 uses two AA cells as Power supply. The circuit is...