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PostPosted: Wed Jun 05, 2019 8:58 am 
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Brazilian Rosewood
Brazilian Rosewood

Joined: Tue May 13, 2008 10:44 am
Posts: 6237
Location: Virginia
You know how you can stick a bright light inside the guitar and see the bracing patterns ghost through?

This is a standard Carpathian Spruce top for example:

Image

I stuck the same bulb in a guitar I am building today and I won't even bother taking a picture of it. It's completely black. There is no light at all coming through the torrified Red Spruce top and this spruce top is .1in thick.

I thought that was interesting and you might think the same.


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PostPosted: Wed Jun 05, 2019 10:08 am 
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Brazilian Rosewood
Brazilian Rosewood

Joined: Mon Jan 28, 2008 5:21 am
Posts: 4844
Location: Central PA
First name: john
Last Name: hall
City: Hegins
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Zip/Postal Code: 17938
Country: usa
Focus: Build
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this is what happens to old wood and torrified wood. Dick Boak showed that 6 years ago at the ASIA symposium when Martin started using this. It is interesting, it is the hemocellulous cell structure that changes. The old wood from my old 1800 martins are the same. Very interesting to see for the first time.

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PostPosted: Wed Jun 05, 2019 12:12 pm 
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Brazilian Rosewood
Brazilian Rosewood

Joined: Tue May 13, 2008 10:44 am
Posts: 6237
Location: Virginia
Yeah I was pretty fascinated by that. I've got a few vintage guitars from the 20's I need to check out with the light just to see.


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PostPosted: Wed Jun 05, 2019 6:58 pm 
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Contributing Member
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Joined: Sun Feb 17, 2013 4:58 pm
Posts: 1449
First name: Ed
Last Name: Minch
City: Chestertown
State: MD
Zip/Postal Code: 21620
Country: United States
Focus: Build
Status: Amateur
On the other side, this is Alaskan Yellow Cedar as the sun went down


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PostPosted: Thu Jun 06, 2019 8:35 am 
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Brazilian Rosewood
Brazilian Rosewood

Joined: Tue May 13, 2008 10:44 am
Posts: 6237
Location: Virginia
Give it another hundred years Ed and it will be dark as night :D


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PostPosted: Fri Jun 07, 2019 7:14 am 
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Brazilian Rosewood
Brazilian Rosewood

Joined: Tue May 13, 2008 10:44 am
Posts: 6237
Location: Virginia
Another observation about torrified tops I found yesterday is that when you screw up and dent the top steaming the dent doens't do a darn thing. The wood simply will NOT expand under hot steam. Which sux because now I'm in a pickle.


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PostPosted: Fri Jun 07, 2019 8:19 am 
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Joined: Wed Oct 08, 2008 11:36 am
Posts: 7251
Location: Southeast US
City: Lenoir City
State: TN
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Focus: Repair
jfmckenna wrote:
Another observation about torrified tops I found yesterday is that when you screw up and dent the top steaming the dent doens't do a darn thing. The wood simply will NOT expand under hot steam. Which sux because now I'm in a pickle.


Good to know, I just got my first torrefied top from Bob C. to use in my next build. I've used some torrefied maple and found that it doesn't bend as well and is somewhat brittle.

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