Found in National Semiconductor documentation, this logarithmic meter is powered with a voltage of only 1.5 V. Equivalent operational amplifiers can be tested.
This circuit was found in the April 1993 Electronics Now magazine. With it, it is possible to...
We found this circuit in the February 1983 issue of Radio Electronics magazine. The 4-digit...
This circuit was found in Philips documentation from 1967. The circuit uses components of the...