This filter with the 741 op amp was found in the February 1995 Electronics Now magazine. The power supply must be dual.
This ionization chamber voltage tripler circuit from the January 1994 Electronics Now magazine uses...
We found this circuit in a technical documentation from the 70's. Any double-gate MOSFET can be...
This circuit was found in an English magazine from 1978, but it is still current, just change the...