? Measuring vacuum

[PAT A RALPH]

Dave,

Just checked with a resident expert in the St. Louis Area (MO).  Using a
water guage, soft is about 6" vacuum and loud is up to 16 to 18" of vacuum.

I don't know if you guage will convert this.  My source uses a "U" shaped
guage of which  one half is a glass tube on which inch measurments are
placed and the other half of rubber tubing.  His guage is about 40" tall
with water in about half way.

Ken Gerler

----- Original Message -----
From: <AAAPianoServic@AOL.COM>
To: <pianotech@ptg.org>
Sent: Wednesday, February 16, 2000 11:29 AM
Subject: ? Measuring vacuum


> Does anyone know right off the top of their heads the amount(s) of vacuum
> needed to run an old player piano?
>
> Players are not my forte, but I was talked into looking at one for a
friend.
> I just received my vacuum measuring gauge recently and haven't even used
it
> yet.
>
> Any response would most likely prove helpful.  Thank-you.
>
> Dave Streit
> AAA Piano Service
> Beaverton, OR