Oscillographwith Spectro- and Sonogram
On my search for saturation differences in 12- and 15 V modules, noise-module comparisons, LFO observations, and many other similar situations, my oscilloscope patch always helped me a lot. Surely this is the patch, which should (theoretically) have the greatest interest. Especially when working with analog synthesizers a revealing tool!
It is designed for 2 channels and should largely explain itself. PDF is also available.