On Wed, Nov 06, 2024 at 11:05:13AM -0500, Mike Stein via cctalk wrote: > I use a strobe disk glued to a fridge magnet that I stick on the spindle > motor of 5 1/4" drives to confirm the speed; the trouble is that it's > becoming difficult these days to find lamps that emit light at 60 Hz. ;-)
Those landfill-grade bulbs from AliExpress will probably do the job just fine. Make sure you don't pay more than a couple of bucks since otherwise they might have spent an extra couple of cents on the necessary smoothing capacitors. I have one rattling about which gives a nice 50Hz flicker, and its main job is to remind me why I don't miss CRTs whenever I get a nostalgia fix and consider acquiring one. It was something like €1.86, and almost certainly exactly $2 at the prevailing exchange rate.
