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RE: new build for 68' Conde style flamenco   You are logged in as Guest
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Tom Blackshear

 

Posts: 2253
Joined: Apr. 15 2008
 

RE: new build for 68' Conde style fl... (in reply to Tom Blackshear

Here is the oriental player again.

Very nicely put together by Panasonic.



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Tom Blackshear Guitar maker
  REPORT THIS POST AS INAPPROPRIATE |  Date Jun. 9 2021 19:14:04
 
Tom Blackshear

 

Posts: 2253
Joined: Apr. 15 2008
 

RE: new build for 68' Conde style fl... (in reply to Tom Blackshear

well, just when I thought everything was about finished with guitars, along comes a brilliant craftsman that loves guitar building.

His name is Jearson Picado who lives in a town close to me.

We are currently working on a guitar, 2003 Reyes model flamenco negra, with him building to my specs. His french polish is as good as mine ever was and the cosmetic value of the build is spot on.

There is nothing more I can teach him about the building process, except fine tuning, which seems to be very close to being finalized with this current build.

Honestly, he is a better builder than this writer.

It will probably be about a month before the finish out so I'll try to keep you posted as it goes.

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Tom Blackshear Guitar maker
  REPORT THIS POST AS INAPPROPRIATE |  Date Jun. 15 2021 15:11:22
 
FERREREZAKI

Posts: 62
Joined: Jul. 10 2013
 

RE: new build for 68' Conde style fl... (in reply to Tom Blackshear

Sorry to read about your physical set backs. Hope you get back soon.
Thanks for passning on your knowledge to local luthiers and us here.
Take care!
  REPORT THIS POST AS INAPPROPRIATE |  Date Aug. 7 2021 13:08:40
 
Tom Blackshear

 

Posts: 2253
Joined: Apr. 15 2008
 

RE: new build for 68' Conde style fl... (in reply to FERREREZAKI

Thanks for thinking about me. I have this one Conde style I need to finish but I'll need help from my student to make it happen.

But first I want him to finish his Reyes style before anything else.

You know how these things go

If his flamenco guitar turns out good, then I'll present it to this list.

So far, his last guitar was very good, so we hope to launch his guitars into the market place when he is finished with it.

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Tom Blackshear Guitar maker
  REPORT THIS POST AS INAPPROPRIATE |  Date Aug. 9 2021 15:34:03
 
Tom Blackshear

 

Posts: 2253
Joined: Apr. 15 2008
 

RE: new build for 68' Conde style fl... (in reply to Tom Blackshear

After many years with my e-mail tguitars@texas.net, it has changed to:

tguitars80@gmail.com

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Tom Blackshear Guitar maker
  REPORT THIS POST AS INAPPROPRIATE |  Date Sep. 3 2021 18:16:35
 
Tom Blackshear

 

Posts: 2253
Joined: Apr. 15 2008
 

RE: new build for 68' Conde style fl... (in reply to Tom Blackshear

Attention Ricardo,

Strangely enough, Nino Miguel used a dark second and third string on this guitar for his bulerias, as the second piece on this you tube, which indicates that this style was used quite a few years ago with flamenco guitarists.

Go figure......



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Tom Blackshear Guitar maker
  REPORT THIS POST AS INAPPROPRIATE |  Date Sep. 14 2021 22:07:25
 
Stu

Posts: 1923
Joined: Jan. 30 2007
From: London (the South of it), England

RE: new build for 68' Conde style fl... (in reply to Tom Blackshear

Only followed this thread sporadically....

Is this a joke name? Im trying to figure it out....haha

quote:

Jearson Picado


like Seymour Butts or Hugh Jass?

his surname is actually Picado?

pretty cool
  REPORT THIS POST AS INAPPROPRIATE |  Date Sep. 15 2021 10:07:28
 
Tom Blackshear

 

Posts: 2253
Joined: Apr. 15 2008
 

RE: new build for 68' Conde style fl... (in reply to Stu

Jearson has been building guitars for about 4 years, and this is his real name.

I haven't heard from him for awhile but I imagine he is about to finish the instrument with French polish.

His cosmetics are outstanding.

And I usually leave him alone until he has something to show me.

So, if the tonal quality is good, then I'll present it to this list.

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Tom Blackshear Guitar maker
  REPORT THIS POST AS INAPPROPRIATE |  Date Sep. 17 2021 20:22:46
 
rombsix

Posts: 7575
Joined: Jan. 11 2006
From: Beirut, Lebanon

RE: new build for 68' Conde style fl... (in reply to Stu

quote:

like Seymour Butts or Hugh Jass?




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Ramzi

http://www.youtube.com/rombsix
  REPORT THIS POST AS INAPPROPRIATE |  Date Sep. 21 2021 14:27:29
 
Tom Blackshear

 

Posts: 2253
Joined: Apr. 15 2008
 

RE: new build for 68' Conde style fl... (in reply to rombsix

you know the old saying..........."what's in a name"

Actually just talked to Jearson tonight and he recently sold one of his earlier guitars to Memorial Music in Houston Texas; the store who carries the Francisco Navarro guitars from Mexico.

The store is asking for more.

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Tom Blackshear Guitar maker
  REPORT THIS POST AS INAPPROPRIATE |  Date Oct. 2 2021 0:50:51
 
Tom Blackshear

 

Posts: 2253
Joined: Apr. 15 2008
 

RE: new build for 68' Conde style fl... (in reply to Tom Blackshear

Hello.

I received a note from an acoustics engineer in San Juan Puerto Rico and thought you guys might find it interesting, perhaps more knowledgeable than I can understand.

Hello Tom,


I work with Carlos Rodriguez, San Juan Mix Suite, Puerto Rico.
My specialty is acoustics, mostly small room acoustics and that's what we do together.
My products are the TubeTraps, which I invented and developed. I'm the owner of ASC.
I'm an acoustical engineer with masters in engineering(acoustics) and physics.


OK, years ago I got the opportunity to develop a lab manual for a physics book called The Acoustics of the Guitar.
It was through a grant from National Science Foundation. I spent the summer studying guitar sound.
I would like to share with you basically what I discovered. I've discussed these concepts with other builders and they don't seem to relate to them.


Sound comes off both sides of the guitar surface.
The sound off the front side projects into the open space and people believe that is what they are listening to.
But this is only 50% of the sound made by the guitar, the other half of the sound is projected into the guitar body cavity.
People think that the sound hole is where this inside sound comes out.


Sound hole is Helmholtz resonator to reinforce lowest note of the guitar. It's the fundamental drone tone for the guitar,
stimulated by the initial shock of every string pluck, no matter what the string note is.


In my research I found the thump tuned "sound windows" on the top of the guitar
are located in a unique position relative to the curved interior sides of the body of the guitar.
A portion of a curved side reflects and refocuses the sound back to where the tuned sound window is located.
This reflected sound arriving at the back side of the sound window is in phase and in time with the movement of the backside of the sound window.
Essentially a standing wave is setup inside the guitar body which reinforces the sound being emitted off the top of the sound window.


Here's how I found this out.
I was using a glass tube with a rubber hose attached to it, plugged into my ear to explore the sound inside the guitars.

They were Martin guitars. I put a vibrator on the bridge and did a tone sweep.
I heard many different louder and quieter notes. I left tuner on a louder good sounding note and explored the interior of the body with my glass tube.
It didn't take long to discover standing wave patterns inside the guitar
I used crayons to draw the standing wave patterns I found inside the body, on the top of the guitar. (crayons can be erased easily)
I could easily see what was going on, same thing note after note. Different sound windows, and different standing wave patterns.


The reflected sound off the curved sides is refocused back to where the sound came from, the bottom side of the thump tuned sound window.
This refocused reflected standing wave reinforces the movement of the sound window which gives the top side of the guitar more sound power.
The top of the thump tuned sound window makes louder and longer lasting tones because it is utilizing the sound emitted off the back side of the window.
It's a method of acoustic feedback that reinforces the sound being emitted off the front side of the guitar.


The shape of the guitar is because of where the sound windows are located in the top and where the refocusing reflection off the interior sides are located.


I give this to you because Carlos said you share your "secrets" of guitar building,
I shared this with Carlos and I decided to share it with you. My son has one of your guitars from Carlos.
I'd like to know about your thoughts and/or experiences on this discovery.


Arthur Noxon

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Tom Blackshear Guitar maker
  REPORT THIS POST AS INAPPROPRIATE |  Date Nov. 28 2021 21:03:09
 
Tom Blackshear

 

Posts: 2253
Joined: Apr. 15 2008
 

RE: new build for 68' Conde style fl... (in reply to Tom Blackshear

Here is my return note:

Hello

Have you shared this idea with Angel? Science can attack problems to gain what we call information to the mind, and has its value if used properly to find answers to the universal scheme of things. I work with analog techniques to correct guitar tone; with the five senses as well as prayer on occasion :-)

I apply what I call fan brace polishing to develop synergistic communication to the top, which tries to bring the tone into harmony with its inter-dimensional qualities. But the guitar is quite complex in its over-all function of right and left hand articulation, then tone and then to fine tune it to be a playing machine.

The Martin guitar is a steel strung instrument and quite different from a classical guitar. Their restoration dept. gives me credit for what I do and I give them credit for what they do with their steel strung guitars.

I approach fine tuning with a layman's touch and feel, as a guitar player and builder; in this order. My building technique is about par with 85% of most guitar enthusiasts, and this part of the market is what I build for. In other words, I’m quite ignorant when it comes to Science and I would be a poor source to gauge what you are doing in the Scientific field.

To me, it’s not a question of how loud a guitar is but to its quality of character. If science changes it too much, then it is no longer a guitar. But if science fits into certain amplification, then bravo.

I hope this helps.

Tom Blackshear

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Tom Blackshear Guitar maker
  REPORT THIS POST AS INAPPROPRIATE |  Date Nov. 28 2021 21:10:31
 
Tom Blackshear

 

Posts: 2253
Joined: Apr. 15 2008
 

RE: new build for 68' Conde style fl... (in reply to Tom Blackshear

The latest e-mail..........

Hi Tom,

The idea of using internal standing wave feedback to gain amplification was my own idea.
There may be some other factors, subjective sound qualities. I wasn't thinking that way at the time.

I'll borrow your guitar from my son and let's see if I can find some standing waves inside of it.

If so, I'll map them and let you know.


I'll wait until I know more before I contact Angel.


Art Noxon

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Tom Blackshear Guitar maker
  REPORT THIS POST AS INAPPROPRIATE |  Date Nov. 29 2021 1:07:34
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