This Linear Technology circuit can measure currents from 100 pA to 100 uA. The circuit is from the 80's, using a component of the era. Transistors are general purpose types.
This simple circuit was obtained from Popular Electronics in December 1990. The magazine no longer...
Indicated by a 90s Popular Electronics, this circuit amplifies acoustic signals for analysis on an...
) This variable frequency oscillator was found in an old American documentation. Transistors allow more...