The varispeed, or speed-changer as it
was first called, is shown here on a restored 1918 Original. The bug
had been a ship's key and was hopelessly rusted out. I decided to restore
the base in the style of the ATOZ bugs of the time since I was unlikely to ever
see one. That is why it is green with gold and blue stripes. I also
recreated the decal used on that era Vibroplex bugs.
I will take a photo of the varispeed on an old Racer,
showing how with a U-shaped damper, it can lean straight back. In that
configuration, speed can be reduced into the 12 wpm range!
Would people be interested in me writing about mainsprings
on various aged (Vibroplex) bugs?
Fred - kt5x