Re: [Harp-L] Tuning by electroplating

[David Payne <dave@xxxxxxxxxxxxxxxxxxxxxx>]

I could probably add one to Vern's list of the disadvantages to tuning by electroplating. 
* It would be an extreme pain in the a..

 
David Payne
www.elkriverharmonicas.com


Elk River Harmonicas Forum now available via Iphone app, www.elkriverharmonicas.com/forum


________________________________
 From: Vern <jevern@xxxxxxx>
To: Harvey Berman <cscharp@xxxxxxxxxxxxx> 
Cc: harp-l@xxxxxxxxxx 
Sent: Thursday, October 18, 2012 5:05 PM
Subject: Re: [Harp-L] Tuning by electroplating
 
Theoretically it should work, but there would be many practical difficulties:

- You would have to mask off the sides and the tip of the reed where you do not wish to add metal.
- The cost would be high
- The reed would be stiffer and the responsiveness would be different.
- Calibrating the process to produce the desired pitch would be a long process.

What about finding a way to attach a shorter, higher-pitched reed so its tip would vibrate in the tip end of the slot. Glue? Then you could fill any gaps or holes in the plate or slot at the fastener end with epoxy where you modified it.  That end is much less critical.

Organ reeds are raised in pitch by means of a thin spring wire that touches them near the rivet end.  They are tuned by moving the wire along the length of the reed. The closer to the tip, the higher the pitch.  

Vern


On Oct 17, 2012, at 8:50 PM, Harvey Berman wrote:

> Has anyone here heard of anyone trying to tune harmonicas by Electroplating the 
> reeds. 
> 
>  We all know about adding weight to the tip of the reed to lower the pitch, but 
> nothing seems to work on the rivet end.  I have been noticing that there are 
> some cheap electroplating wands and solutions for copper, brass, gold etc.  Is 
> it possible that a very soft, pliable metal like copper, or perhaps brass could 
> be electroplated on the rivet end of a reed to raise the pitch??
> 
> Just wondering.  I might try it.
> 
> HarveyHarp