[Sebastian] probably didn’t think he was wading into controversial waters when he posted on his experimental method for etching PCBs (in German). It’s not like etching with hydrochloric acid ...

When "Diff'rent Strokes" hit the airwaves in 1978 ... He's an avid musician, singing and playing guitar in several different bands over the years, including "Bad4Good," "Arbuckle," and "Shelter ...