C88 Hammer Position

[Farrell]

You are thinking 20th Century Mike! I guess I should have specified - old,
old, old upright. 1895. Wooden fixed action supports. Thank goodness metal
action frames. No threaded supports for moving action up and down. I was
just referring to mounting an extra hammer on an old butt a little short
just to cover that end of the spectrum, then you could move it up a tad to
test sound.

I'm curious what you train of thought is on "uprights where the hammer line
wanders away from a straight line in the tenor"? This original hammer line
was straight, but I plan on raising the last few tenor hammer to accommodate
longer dampers. Do you know of any trouble with this design? Thanks

Terry Farrell

----- Original Message -----
From: "Mike and Jane Spalding" <mjbkspal@execpc.com>
To: <pianotech@ptg.org>
Sent: Thursday, November 08, 2001 8:59 PM
Subject: Re: C88 Hammer Position


> Terry,
>
> 1/8 is a good starting point, it probably won't end up far from there.
> You're right about hanging a hammer and testing / fine tuning the strike
> point.  I wouldn't mount it on the low side, I'd put right where I thought
> it was going to belong.  There should be threaded supports for the action
> brackets that let you adjust up and down.  It's a good idea to hang a
couple
> of additional hammers, bottom and middle of the high treble section, and
> make sure that when C88 is right, the other two are not wrong.  Hopefully,
> this is not one of those uprights where the hammer line wanders away from
a
> straight line in the tenor?
>
> Mike
>
>
> ----- Original Message -----
> From: Farrell <mfarrel2@tampabay.rr.com>
> To: <pianotech@ptg.org>
> Sent: Thursday, November 08, 2001 7:32 PM
> Subject: C88 Hammer Position
>
>
> > Hi List. I am installing a new action in an old upright. I need to
> determine
> > the best position for hammer height on C88. On a grand, I have the
luxury
> of
> > moving the action in and out to find best sound. How is this best done
on
> an
> > upright? Is there a general optimal position? Wally Brooks says 1/8"
down
> > from top termination. I realize he is quite knowledgable - and I will
> follow
> > his advice if I get no further input, but I wondered if there were any
> > differing opinions. The speaking length on C88 is 50.5 mm. Or should I
put
> a
> > hammer on C88 a bit on the low side and just lift the action up and down
> > trying to find a best height (seems like things could get out of hand -
so
> > to speak). Thanks
> >
> > Terry Farrell
> >
> >
> >
>
>