On 08/18/2017 05:36 PM, Jim Wilkins wrote:
BTW auto-darkening helmets won't stay dark without the flicker of an
arc.

Get creative. Watch the sun with a spinning fan in front of your
auto-darkening filter.
(Sounds to me like a good way to go blind _and_ get a headache too.
Of course YMMV.)

--
Bob Nichols AT comcast.net I am "RNichols42"