[Coco] Re: Re: Coco Digest, Vol 12, Issue 12

[Rodney V Hamilton]

In article <41632E63.2050504 at worldnet.att.net>, robert.gault at worldnet.att.net says...
[snip]
>
>RPM checks: The strobe can be used with any incandescent light bulb. 
>Fluorescents probably won't work.

Actually, it's the other way around.  An incandescent light has too much
thermal inertia to have any noticeable flicker.  You *want* to use a
fluorescent light because they do have considerable brightness and color
variation at the 60Hz (or 50Hz) power line frequency - a natural strobe
light!  When you look at the strobe disk pattern under fluorescent light
with the motor running, you will see a yellow/blue "ghost" pattern slowly
rotating.  There should be a small tachometer adjustment potentiometer
somewhere that will let you "freeze" the pattern.  Do that and you're done.

Rodney