Post B2w2L2Xts8vEicyf9k by niconiconi@mk.absturztau.be
 (DIR) More posts by niconiconi@mk.absturztau.be
 (DIR) Post #B2w2L2Xts8vEicyf9k by niconiconi@mk.absturztau.be
       2022-10-06T11:18:32.159Z
       
       3 likes, 1 repeats
       
       Whoever invented this method must be a genius. This was a portable calibrator for high-voltage partial discharge testing. Because of HV, it was battery powered and insulated from the mains. But sometimes the test signal needs to be phase-locked to the 50/60 Hz AC mains frequency, and the solution was:"with a photocell that synchronizes the instrument with the ambient lighting of the laboratory."​:blobcatthinksmart:​ #electronics
       
 (DIR) Post #B2w2L3uGoSPUwIS2fA by rose@snac.pinkro.se
       2026-02-03T05:56:31Z
       
       0 likes, 0 repeats
       
       @niconiconi@mk.absturztau.be me and my humble 100hz strobe light :ipv5:
       
 (DIR) Post #B2wMX6icBKgyDd1LKC by Suiseiseki@freesoftwareextremist.com
       2026-02-03T09:42:59.028474Z
       
       0 likes, 0 repeats
       
       @niconiconi What if you use LED lighting that goes all over the place?
       
 (DIR) Post #B2x1fwwjyp8sdbxlLM by wolf480pl@mstdn.io
       2026-02-03T17:23:56Z
       
       0 likes, 0 repeats
       
       @niconiconiThis is the type of feature which is simple to implement and very difficult to debug if you don't know it's there, I love it!