This power supply has a resolution of 10 pA in the current range from -100 to +100 nA. The circuit is from a 90s Electronic Design operating with voltages from -4 to +3.5 V.
Among the alternative energy sources, one of the most promising is that represented by Astro-Rei....
This sensitive bio-monitoring circuit was found in the December 1984 issue of Radio Electronics magazine....
Found in a 1960s Electronic Design, this circuit provides a signal from the sensing of an analog...