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#1
06-02-2015, 11:56 AM
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Knox sitka/mesquite jumbo
I've been posting here for a while, but this is my first thread. I've just finished this one, and I'd thought I'd share some photos.
   
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Rodger Knox, PE 1917 Martin 0-28 1956 Gibson J-50 et al Last edited by Rodger Knox; 06-02-2015 at 12:55 PM. 
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#2
06-02-2015, 12:02 PM
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Now for some construction photos. Here's some mockups I considered for the back.
   edit: some photos deleted
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Rodger Knox, PE 1917 Martin 0-28 1956 Gibson J-50 et al Last edited by Rodger Knox; 06-03-2015 at 09:09 AM.
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#3
06-02-2015, 12:06 PM
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Marking the center laminate for the neck...
 Working on the rosette...   
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Rodger Knox, PE 1917 Martin 0-28 1956 Gibson J-50 et al
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#4
06-02-2015, 12:12 PM
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Installing the internal preamp...
   Setting the shim thickness for the sliders....  Glueing in the shims..  From the outside...  And here's the installed preamp from the inside.  More to come...
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Rodger Knox, PE 1917 Martin 0-28 1956 Gibson J-50 et al Last edited by Rodger Knox; 06-02-2015 at 12:54 PM.
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#5
06-02-2015, 02:26 PM
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Here's a few more shots of the preamp. It's the MIMF preamp, a circuit designed by Vlad Ardlean. I designed and etched the circuit board, and soldered all the components by hand.
 The circuit board is 1 1/2"x2", and you can see the SMT components are tiny!  Gluing on the top...  Fitting the neck...  Another shot...  I didn't get any photos of the neck getting cut out and glued up, that's all done in the photo above. Inside the box, before it's closed.  As you can see by the date on the top, I've been working on this one for a while...  With the back assembled and glued on... 
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Rodger Knox, PE 1917 Martin 0-28 1956 Gibson J-50 et al Last edited by Rodger Knox; 06-02-2015 at 02:33 PM.
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#6
06-02-2015, 03:10 PM
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Beginning the fretboard inlay...
  I don't have any other photos of the fretboard inlay, this project was pre-empted by several others and the photo-documentation suffered. Ready for final finish...      
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Rodger Knox, PE 1917 Martin 0-28 1956 Gibson J-50 et al
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#7
06-02-2015, 03:17 PM
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Finally finished!
      That's all folks!
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Rodger Knox, PE 1917 Martin 0-28 1956 Gibson J-50 et al
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#8
06-03-2015, 11:23 AM
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No questions or comments?
I guess I should do better work, and take better pictures.
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Rodger Knox, PE 1917 Martin 0-28 1956 Gibson J-50 et al
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#9
06-03-2015, 11:29 AM
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Looking good, Rodger! Really like how the back turned out, and I can't imagine the patience it must take for all that inlay work. Nice work!
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2013 Stehr Auditorium (Carpathian/Myrtle) 2015 Stehr Auditorium (Adi/BRW) 2020 Baranik Meridian (Blue Spruce/Manchinga) 2020 Wilborn Arum (Tunnel 14/Coco) 2021 Kinnaird Graybeard (BC Cedar/Bog Oak) 2022 Kinnaird CS Student Build (Adi/Padauk) 2023 Kinnaird FS (Italian/Koa)
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#10
06-04-2015, 11:26 AM
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Thanks, the inlay does take some time.
I'm surprised that the handmade preamp didn't generate any interest. It is out of date now, since SBTs have replaced USTs as the preferred system, and the preamp is designed for USTs that require a higher input impedance. It was state or the art when it was designed, but there have been a lot of advancements in acoustic amplification in the last 10 or 12 years.
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Rodger Knox, PE 1917 Martin 0-28 1956 Gibson J-50 et al
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