Maybe this is obvious, but I have a speed disk to put on my TT for use with the VPI SDS, but what light source do you use to check accuracy? Do I go to Radio Shack or someplace and get a strobe light? Are their choices?
I think all you need to use is a standard 60Hz bulb. I use a portable work light similar to one that you use for car repairs. Just make sure it is 60Hz if you are in the USA, not he newer LED type.
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