The age of your strings shouldn't matter. I have ancient strings on one of my electrics and the harmonics ring just fine on the 12th fret. It could be that your bridge just needs to be adjusted.
http://answers.yahoo.ca/question/index?qid=200805061653...
The Harmony Company is an American musical instrument manufacturer that was in its heyday the largest stringed instrument manufacturer in the USA. Harmony was founded in 1892 by Wilhelm Schultz. In 1916, it was bought by Sears, Roebuck and ...
http://en.wikipedia.org/wiki/Harmony_Company
A diatonic scale having a half step between the second and third degrees and any of several intervalic arrangements above the fifth. Meaning #1: a diatonic scale with notes separated by whole tones except for the 2nd and 3rd and 5th and 6...
http://in.answers.yahoo.com/question/index?qid=20090204...
・ 1 Start on the sixth string; place your finger exactly over the twelfth fret. ・ 2 Touch the string lightly without pressing down all the way to the neck. ・ 3 Pluck the string normally. ・ 4 Release your finger after plucking. If done corre...
http://www.ehow.com/how_2314225_play-harmonics-guitar.h...
・ 1 Hold you pick as usual, then move the fleshy part of your thumb closer to the tip. Angle the pick a... ・ 2 With moderate distortion on your amplifier, play the ninth fret of the third (G) string. Touch the... ・ 3 Play the note again, bu...
http://www.ehow.com/how_4474002_play-pinch-harmonics-gu...
A basic knowledge of how harmonics work is preferable. Hold your guitar pick so that there is a very small amount (1mm or so) protruding from your thumb. Pick in a way that resembles digging the string, so that the flesh of your thumb light...
http://wiki.answers.com/Q/How_do_you_do_a_pinch_harmoni...
・ 1 Play a Harmonic: A harmonic is easily pulled off of the 5th, 7th and 12th frets, so we will use those... ・ 2 Tune the Low E string: Tune the low E using the 7th fret harmonic. Tune this to pitch pipes, an electric... ・ 3 Tune the A stri...
http://www.ehow.com/how_2187418_tune-guitar-using-harmo...