This circuit is from American documentation from the 70s. The circuit makes use of the operating system of the time, but it can be implemented with more modern equivalents.
This circuit was found in documentation from the 1980s. The circuit uses several components of the...
The National Semiconductor LM143 integrated circuit consists of a high voltage operational...
Found in a 1970s documentation, this mini-organ toy circuit makes use of an integrated circuit from...