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Author Topic: How It's Made: Accordion  (Read 3045 times)

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falcanary

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How It's Made: Accordion
« on: November 04, 2008, 05:40:52 AM »

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Steve_freereeder

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Re: How It's Made: Accordion
« Reply #1 on: November 04, 2008, 09:23:51 AM »

Very interesting. Thanks for posting the link.
This one is possibly more relevant to us here. It has many similarities with the 1-row 4-stop melodeon that some of us made recently in Stowmarket, Suffolk.

http://uk.youtube.com/watch?v=ZQglJZFjUsc
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falcanary

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Re: How It's Made: Accordion
« Reply #2 on: November 04, 2008, 09:27:56 PM »

Yep, i posted that one also some time ago.   Enjoy both of them.
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Skipy

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Re: How It's Made: Accordion
« Reply #3 on: November 22, 2008, 12:45:22 PM »

I've just watched both the video's, Fascinating!

However, here's one for Theo or Rees. I can understand that filing a little off a reed would raise it's pitch but how would you lower the pitch of a reed?

I just wondered.

Skipy



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an bosca ceoil

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Re: How It's Made: Accordion
« Reply #4 on: November 22, 2008, 01:48:40 PM »

When one of you answer this one please add your thoughts on the use of solder/ untempering.
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Theo

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Re: How It's Made: Accordion
« Reply #5 on: November 22, 2008, 06:38:25 PM »

but how would you lower the pitch of a reed?


You file or sand metal off the lower third or so of the reed.  That weakens the spring effect and slows the vibrations = lower pitch sound.

When one of you answer this one please add your thoughts on the use of solder/ untempering.
I try to avoid using solder on all but the lowest reeds, those which have weighted tips anyway.  I have once or twice seen reeds more or less ruined by having solder applied to the lower third of the reed which in theory does raise the pitch, but also ruins the reeds response, making it sound dull and weak.

Untempering?  Tempering is the heat treatment process applied to steel after it has been hardened to reduce the hardness by a controlled amount to make it useful for its intended purpose.  So if any thing soldering might temper it more, ie make it softer

Reed steel is tempered at temperatures higher than soft solder needs to melt, so using a good electric soldering iron you are unlikely to adversely affect the reed tongue.
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Theo Gibb - Gateshead UK

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Skipy

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Re: How It's Made: Accordion
« Reply #6 on: November 23, 2008, 04:53:43 PM »

Thanks Theo,

I'm glad you never said "I'll give you three guesses?"

1. A blob of Blu-tack.
2. A smear of glue sprinkled with filings from another reed that was too high.
3. Replace the Reed.

WRONG!!  :D

Each to their own trade, eh?

Skipy
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Theo

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Re: How It's Made: Accordion
« Reply #7 on: November 23, 2008, 06:02:34 PM »

Actually a blob of blutac does work, and can be a useful temporary measure.
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Theo Gibb - Gateshead UK

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Skipy

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Re: How It's Made: Accordion
« Reply #8 on: November 23, 2008, 06:18:46 PM »

Actually a blob of blutac does work, and can be a useful temporary measure.

Oh! Right! OK!  :o  Well, there's hope for me yet. I can feel a new trade coming on!

Right then Theo, if you get so much work that you can't cope, you know where to point them.....  ;)

Skipy
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