The circuit shown is from the November 1996 Electronics Now magazine. The basic circuit is in the previous 3 sections of this section. The circuit measures resistances up to 2M ohms.
This circuit was indicated in an old American publication to serve as a Laser alarm system as a...
This circuit, which uses only transistors as active components, was found in a 1987 documentation. The...
This sound meter or sonometer was found in a Popular Electronics from the 80's. The circuit can be...