We found this circuit in the September 1995 issue of Electronics Now magazine. The circuit has 6 scales for resistance measurements and uses an analog indicator from 50 uA to 1 mA.
This circuit, found in a 1978 publication, converts 5 V into a symmetrical 15 V output under low...
This Wien bridge oscillator was found in a 90's EDN. The components are from that time and the...
Found in a 303 Circuits from the 90s, this circuit converts signals from the 10 kHz to 150 kHz...