This circuit is from a 1967 documentation. It consists of a sensor for memories used at the time. It can be made with modern equivalent transistors. Note the 4 V symmetrical power source.
If you have a common analog multimeter, you can increase its input resistance in the measurement of...
This circuit was found in a Texas optoelectronic manual. Observe the polarity of the supply. Other...
This circuit is from 80s documentation and makes use of common operational amplifiers. The...