Re: [sdiy] Tuning indicator

[jhaible at debitel.net]

>Here's how I would do it...  (and most of you know that I almost never
>do things the normal way).
>[...]
>I'm surprised nobody makes tuners like this.  It would be so much
>better than those cheezy digital tuners.  Sure it'd be expensive,
>you'd need one of these displays for each of the 12 chromatic notes,
>but it would be so nice to use.
>
>  -- Don


Hi Don,

I have seen (and built from a kit) something very similar.

I don't remember all the details, but it worked with a counter
(4017 ?) instead of a bargraph, and the LEDs were arranged
in a circle. So when the the guitar tone was too high, the LED
light would circle in clockwise direction, and when it was too
low, in ccw direction. This was very nice too look at, and
if also was very intuitive because you had to turn the screw
on your guitar head in opposite direction of the LED point.

I have thrown this box away when I had given up to learn
the guitar, and after I canibalized it for theTOS chip.
The kit was presented in a German electronics magazine,
I guess Elrad or maybe Elektor.

JH.