We found this circuit in an 80's manual. The same configuration can be adapted to make use of modern operational amplifiers. The power supply is symmetrical.
This circuit was found in an American 80s circuit manual. The components used are unusual. The...
The circuit was originally designed to operate with MSX microcomputers in 1988 but can be used to...
This TTL decoder circuit for PC ports was found in a document from 1992. The power supply can be...