[pianotech] Scaling Help

[David Love]

Yes.  That chart is a full half size different than the gauges given for
Roslau wire sold by American suppliers.  Best thing is not to trust gauge
markings on the plate.  Measure the wire with a micrometer and convert
depending on your supplier's protocol.    

If you are buying Roslau or Mapes wire from an American supply house, .043
will correspond to #19 gauge.  Pianos manufactured in Europe or other parts
of the world may well have a different gauge standard.  

David Love
www.davidlovepianos.com


-----Original Message-----
From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of John Delacour
Sent: Friday, April 01, 2011 12:39 AM
To: pianotech at ptg.org
Subject: Re: [pianotech] Scaling Help

At 23:31 -0700 31/03/2011, Rob McCall wrote:

>...where I mic'd a #19 wire (.043) the scale on the bridge showed 19.5.

Only Americans use the American wire gauge.  Everyone else uses the 
sizes you'll find here:

<http://www.fletcher-newman.co.uk/catalogue/piano_wire_strings/index.html>

JD