Re: [Harp-L] MS slot lenghths



Harmonica manufacturers do not always use the same slot dimensions for the same pitch and vice versa.  The differences depend on the model, the key, and the date of manufacture.

Hohner has standardized on a finite set of slot lengths and two reed widths.  Any Hohner reed will have one of these standard dimensions.

I refer you to http://www.patmissin.com/tunings/tunings.html  where you should download Pat Missin's "Altered States" and open the SLOTS.TXT file.  All harmonica technicians should be grateful for Pat's information.
He lists the pitches and slot dimensions of many harmonicas.  

Not only pitch but also slot length and width are necessary to determine reed interchangeability. IF you have that information, model and key are irrelevant.  I prefer to use the internal jaws of an electronic caliper (about $35) to measure the slot (not the reed) dimensions.

Vern

On Jan 28, 2011, at 9:09 AM, Mox Gowland wrote:

> Hopeing to rebuild a '98 G Hohner MS into a Powerbender, 
> I borrowed an 8 hole 'E' draw reed from a '93 built A harp.
> Much to my surprise, I discovered it to be too short !
> Can somebody please explain...............
> Mox






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