Velum Source - Old European Square Piano

[Jurgen Goering]

Ric, thanks for your input.  I have been looking in the drum head 
arena, but it is hard to find the right stuff.

John, I am aware of the velum sold by BG. and others in Germany.  
Regardless of what the dealers may say,  it is too thick and too stiff 
for Blüthner back actions and other action applications in vintage 
instruments.  The sellers are, by and large, not piano restorers and do 
not speak from experience.  0.3 and 0.7 mm velum is fine for 
harpsichord rosettes.  For the purposes we are talking about, the velum 
should be no thicker than 0.15 mm, otherwise the damper underlevers 
tend to float just a little.  I have this information from an 
experienced tech in Germany who has written an article on replacing the 
Blüthner back action velum hinges.

Jurgen Goering
Piano Forte Supply
(250) 754-2440
info at pianofortesupply.com
http://www.pianofortesupply.com


On Feb 14, 2007, at 15:51, Ric wrote:Hey there Jurgen
>
> I suppose you know that certain types of drum heads are for all 
> practical purposes (at least in this regard) the same.  I know fellows 
> over here that actually prefer it. I generally keep any of this stuff 
> that gets thrown out here at the university and use it as needed.
>
> Cheers
> RicB
>
On Feb 14, 2007, at 15:51,John D. wrote:
> Baumgärtel supply it in 0.3mm and 0.7mm.  They advertise the 0.7 for 
> Blüthner damper bodies
>  and I haven't got one accessible at the moment but I think the 0.3 
> would be the proper thickness for this and is what I used on the last 
> set I did last year.
>
> I have also located a supplier on eBay for morocco-type leather, very 
> reasonably priced, used for the wing-type hinge on Kirkman (as below) 
> dampers etc.  Let me know if your interested and I'll look up the id.
>
> JD
>

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