The integrated circuits used in this thermometer are not very common today. The indicator is a microammeter for a scale from 0 to 100o C. The supply must be made with a voltage of 1 to 12 V.
This circuit is quite old, from 1964, but can still be mounted with BC558 transistors. The circuit is...
This circuit is from a 1965 General Electric manual. It uses components from the time that admit...
This system of sequential lights for shop windows, discotheques, stores, does not use integrated...