On Fri, Nov 8, 2024 at 2:56 PM ben via cctalk <cctalk@classiccmp.org> wrote:
>
> On 2024-11-06 12:28 p.m., Brent Hilpert via cctalk wrote:
> > The old common standard for a mains stroboscope was a neon bulb (+resistor).
> > They are still widely available, simple and inexpensive.
> > No, they are not very bright and need some shading or otherwise reduced 
> > ambient light, but for a tool of infrequent use...
> >
> If it works why change it?
> Don't modern leds use a still glow after being turned off?

Quite possibly white ones do. But thenso do fluorescent lamps which
were often recomended as a mains strobe light source 40 years ago.

But having used white LEDs to make a stroboscope flashing 100 or 120
times a second, I will assure you there's enough change in intensity
between 'on' and 'off'' to give a very clear pattern of the strobe
markings even with normal room illumination also on.

-tony

Reply via email to