This circuit was found in the November 1974 Radio Electronics magazine. The voltage depends on the supply and the timings of R1 and R2 as well as C1 and C2.
We found this configuration in a Radio Electronics from 1989. The circuit can be designed with...
The sensor of this circuit is a photodiode. Equivalent operations can be used, and the instrument can be...
Found in Linear Technology documentation from the 1980s, this generator uses integrated circuits...