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Aug 24, 2010

Psuedo Tansu

I built a custom Tansu-style TV stand for my Pioneer Kuro plasma and PMC LB1 center channel speaker.  The speaker is so large I had almost no choice but to make a custom stand.  I also used this as an opportunity to teach myself some woodworking skills.

Tansu-style TV Stand

This is not a real Tansu, and I'm sure a real Tansu creator would cringe at the design and (lack of) craftsmanship.  Up close, you can see a ton of mistakes I made (poor cuts, plywood tear-out, glue squeeze-out, etc), but at the casual TV viewing distance, I can live with it.  For now.

The whole stand is made from a single sheet of cheap birch plywood, the "macaroni and cheese of woodworking."  It's finished with four coats of Tung Oil, but the birch isn't that pretty, so I'll likely make it darker at some point.

Side note: AOL shut down their member homepages a couple of years ago.  So where can I find the invaluable "Allan's Wood Miser's Workshop" site now besides on archive.org?

category: /diyhousehold |
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Aug 08, 2010

De-rattling an Intelli Guitar Tuner

Soon after buying my Breedlove acoustic guitar, I decided to buy a clip-on tuner.  There are many clip-on tuners available at all price ranges, and they all basically work the same way.  They pick up the vibration of the strings through the guitar body and neck, and display the current pitch in a way that shows you the current tuning.

I opted for a cheap tuner, the Intelli IMT500 [B002Q0WSO8].  While it worked reasonably well, I noticed that the display would occasionally swing wildly to inaccurate values.

I also noticed that I could hear a slight buzzing sound when playing some notes on the guitar.  At first I assumed this was an intonation issue, but after setting up the guitar and trying several types of strings, I ruled out intonation as a cause.  Then it hit me:  I removed the clip-on tuner, and the buzzing stopped.

If I shook the tuner a little in my hand, I could hear a slight rattling from inside the device.  It struck me that this was the cause of the buzzing while I played.  And I realized that this must also affect the accuracy of the tuner.  If the tuner relies on vibrations to show the pitch, extra vibrations from the device itself would explain the wild swings I saw on the display.

This was easy to fix.

De-rattled Guitar Tuner

The tuner is held together with just two screws, and inside, the small circuit board is held in place with two more screws.  There is some “play” where the edge of the board touches the housing, and that’s what causes the buzzing and extra vibrations.  I grabbed a small bit of foam and cut it into bits that I wedged in between the circuit board and the housing.  I reassembled the tuner, and that was that – no more buzzing, and much better tuning accuracy.

De-rattled Guitar Tuner


category: /guitar |
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