The following Sunday....
A piece of mainspring from an
old clock, cut to size and ground down to 1.5mm thickness after
annealing, drilling then hardening and re-tempering plus the
end off a lead fishing weight and the Porter Governor's working
I had to resolder the soundbox.
It looks like somone repaired it before using a galvanised nail
bent to shape for the piece that joins the needle holder to the
mica plate in the soundbox diaphragm.
To see if it worked I filed
a piece of wire to a point for a needle. Much
to my suprise it worked and when I played an old 78 the speed
setting sounded best when set to precisely 78!
All it needs now is a little
cosmetic attention, hiding a few scratches and rubbing with some
stain to make it look nice.