With the compliments of the Elektor Labs and Editorial teams, here comes another previously unpublished article that's free to read straight from a web page by all registered Elektor e-zine readers. "Free Fresh Articles" are published at two-weekly intervals in the Elektor e-zine, alternating with "Free Back Articles".

This time we have an Optical Oscilloscope Probe. The artile is from the "Homelab" category of articles, meaning the material as presented is intended to spur your own experiments and increase your skills rather than just replicate a tried & tested Elektor Labs PCB.

An all-analogue design based on a BPW34 phototransistor as the pickup element, the Optical Probe can help to investigate intricate problems experienced with flicker, intensity variations and supply ripple in and from modern light sources like LEDs.

For “enlightened conclusions about tangled lighting issues” ... using a common oscilloscope ...  go to your free article right here !