This circuit was found in the November 1966 issue of Electronics Now magazine. It uses an LDR as a sensor and has a Bargraph scale with the well-known LM3914.
This circuit uses a feedback integrator. We found it in Ferranti's transistor manual from 1974....
The assembly of a good multimeter meets only one obstacle: the precision that is obtained depends on...
This circuit was found in the Spanish magazine No longer in existence, Mundo Electrónico, in a...