Hello All,  I have converted my 1904 Hupfeld Phonola, in a Ronish
upright, to play both the original Hupfeld 73-note and the modern
88-note rolls.  Harold Ball in Australia gave me the spool box for the
conversion.  The unit tracks just fine for the 73-note rolls but does
not do well on the 88-note rolls.  The tracker bar was built with
a means for controlling the tracking but I do not have the necessary
two-bellows power unit to operate it.

If any one has a two-bellows "tracking regulator" unit they wish to
part with please let me know.

Maury Willyard
Bremerton, Washington
mdwfmw@wavecable.com