PC address decoder (CB20536E)

This TTL decoder circuit for PC ports was found in a document from 1992. The power supply can be PC's own circuit.

Modulated Light Transmitter (CB10673E)
This circuit is from a PopularElectronics of June 1992. The magazine no longer exists, but the...
Electronic Thermometer (CB15076E)
The sensor of this circuit is a common diode, and the measured range is from -10 to + 40º C. The...
Bookstore – Books in English
The author has many books he had written in Eglish (See the Biography) published by famous...