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Topic: TU 12 H boss tuner |
Buck Grantham R.I.P.
From:
Denham Springs, LA. USA
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Posted 15 May 2004 5:59 am |
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| Is there any way to calabrate a TU 12 H tuner ? Thanks , Buck |
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Bill Crook
From:
Goodlettsville, TN , Spending my kid's inheritance
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Posted 15 May 2004 6:44 am
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Buck.......
Yes, it can be calibrated but only with a good frequency counter and a semi-working knowledge of how the tuners work.
A few things come to mind:
1) The condition of the battery.
2) Knowing which trimmer to turn.
3) Knowning how much to turn it.
Now while not trying to be a smart*** or jokeing about this,you can really mess up the device by screwing around with the inards of a tuner haphaszardly. Generally,the things have to be opened up to gain access to the calibration pot and trimmers. some pots adjust the internal mic gain,others trim out the needle "dead-center" point,the input jack level.
Even the cheapie tuners are somewhat exotic when it comes to playing with the insides of them.
Last but not least, MOST tuner problems are caused by WEAK BATTRIES.
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http://home.comcast.net/~crookwf/
http://f1.pg.photos.yahoo.com/ph/crookwf/my_photos |
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Buck Grantham R.I.P.
From:
Denham Springs, LA. USA
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Posted 15 May 2004 1:49 pm
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| Hey, Thanks a bunch. I just thought there was a screw I could turn somewhwre. I also have a VS11 tuner and it seems to be tuning me sharp. Gotten to where I don't trust any thing but a fork. Buck |
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Nicholas Dedring
From:
Beacon, New York, USA
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Posted 17 May 2004 8:16 am
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I forget how you are supposed to do it, but you can shift the hertz up and down that the tuner centers "440" on... I don't have mine in front of me right now, but there's a pair of pitch shift buttons on there somewhere.
Run an instrument through a tuner you know is on, then through the TU12H, and shift until you are close enough to be satisfied... that should do the trick, at least "close enough for government work." |
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Bill Crook
From:
Goodlettsville, TN , Spending my kid's inheritance
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Doug Earnest
From:
Branson, MO USA
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Posted 18 May 2004 4:15 am
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Buck,
You have to take the tuner apart to access the calibration pots. Simple job if you are handy with that sort of thing. I did mine myself and it seemed to work.....
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Doug Earnest
The only Zum Keyless U12, Fender Cyber Twin
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Nicholas Dedring
From:
Beacon, New York, USA
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Posted 18 May 2004 9:52 am
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D'oh, sorry about that... but that does eliminate my worry that I accidentally set it wrong a while back... guess that means I need to work harder on my intonation 
In all seriousness, though: since it has a real, physical needle, can't you just factor in the error? If it's 10 cents sharp by nature, just tune everything 10 flatter than you usually would... it's not a perfect solution, but that might just be adequate for actual field use kind of stuff.[This message was edited by Nicholas Dedring on 18 May 2004 at 10:53 AM.] |
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