Dear James,
You are correct about the "spot killer". While not
readily apparent with the transparent smoke cover in
place, there is a faint residual dot visible with no
signal present with the cover removed.
Consequently, there is the faintest of burn marks
on the scope tube, however it isn't bad -- just a
slight discoloration really and quite small (but
could, of course, get worse with time). With the
smoke cover in place it is barely perceptible -- I
have to really look for it.
Thank you for the suggestion about ATI. Gale will
be contacted concerning the knob and the poteniometer.
Upon first inspection, I thought the scope adjustment
knobs were black plastic with a set screw. WRONG --
even those knobs are machined and black anodized.
Really impressive.
Best regards,
Paul Bigelow