Renner Hammers

[Roger Jolly]

Hi Dave,
        I have had good success with a voicing iron that is quite hot, prop
the hammers up with a voicing block, iron from 3 to 9 o'clock with quite
firm down ward pressure. 
  Deep needle with a single needle low on the shoulder on the low point of
the cup, it will also open the sound quality, as well as brighten the tone.
I know there is little perception of a cup, but I think you will know where
to stab.
 Voicing up with needles in this area usually gives quite a tonal
improvment as well as increasing brilliance.
 Ironing alone will increase brilliance, but will also increase percussion
or impact noise!
Hope this helps.
Roger



At 03:40 PM 1/5/98 -0600, you wrote:
>List:
>
>Has anyone ever had any experience doping Renner hammers?  Renner's
>literature says that doping doesn't work well and recommends filing if
>more brightness is needed.  
>
>I just put on a set of G5M Premium Blues on a Steinway "D" and they are
>a little soft.  Octaves 1 & 2 sound good, and octave 7 is fine.  The
>whole middle is a little mellow.  I don't like filing away 5 years of
>felt to get to the good stuff.  Hammers wear out soon enough without
>pre-wearing them.  I normally would dope them except for the "official"
>word from Renner saying I shouldn't.  Any experience with this on the
>list?
>
>dave
>
>_______________________________________________
>
>David M. Porritt, RPT
>Meadows School of the Arts
>Southern Methodist University
>Dallas, Texas
>_______________________________________________
>
>
Roger Jolly
Balwin Yamaha Piano Centres.
Saskatoon/Regina.
Canada.