On Wednesday 22 December 2004 09:38 am, Maarten de Boer wrote: > Another guitar-tuning trick: if you don't have a reference tone at hand > (and if you don't have absolute hearing), but you do have a television, > you can use the screen-frequency to tune your guitar. > > The television screen flickers at 50 hz (at least, in PAL countries). > Look at your g-string with the tv screen as background (holding your > guitar sideways), and tune it until the you see a static waveform > (it's much like looking at an oscilloscope). A g is at 196 hz, so you > will be 4 hz off. I've noticed the effect, but never had an application. de Boer is dutch for "McGuyver" right? ;) > > With NTSC sets, I guess you could use the b which is at 123 hz, 3 hz > above the 120 Hz flicker. > I used the ringtone composer on my cell phone to get an A yesterday. It's square wavy, but works. If anybody else has a Nokia 3390 "6" = A. > maarten