soundboard drying/moisture meters

[Mark Story]

The problem with pin type resistance meters is that the accuracy decreases
as you approach 0%. In my experience, they are useless in the range that we
work (4%-6%). I would assume that the RF types are the only ones that would
be useful. Unfortunately, they are much more expensive than the $250 that I
paid for mine. I have simply depended on the RH meter in my kiln and
experience in judging time out of the kiln.

Mark Story, RPT
Eastern Washington University
mstory@ewu.edu
-----Original Message-----
From: Lance Lafargue <lafargue@iamerica.net>
To: Pianotech Listserve <pianotech@ptg.org>
Date: Wednesday, June 17, 1998 2:37 PM
Subject: soundboard drying/moisture meters


>Dearest List,
>I am shopping for a decent moisture meter that will give me more control
>over my woodworking and soundboard repairs.  Any suggestions on reasonably
>priced/reasonably accurate meters?  Pin or pinless?  Does it matter?  I've
>checked in Fine Woodworking, but there are lots to choose from.
>
>Also, I've been drying soundboards/shims down to 42% with damp chasers,
>then unplugging the H-2 for one more day.  How dry should the board be?  I
>use the Spurlock jig/bit to repair boards.   Thank you one and all.
>Lance Lafargue, RPT
>New Orleans Chapter
>Covington, LA.
>lafargue@iamerica.net