my thought would be that if it was a tube [valve in british] amplifier then it might be a non-power related harmonic. If it is a solid-state amp then I don't know what could be causing it except to say that it would be another component within the system that is perhaps resonating. Paxmaha
________________________________ From: John Burch <[email protected]> To: The Horn List <[email protected]> Sent: Sat, February 12, 2011 5:13:02 PM Subject: Re: [Hornlist] Musicianship At 10:31 AM 2/12/2011, you wrote: >We had a lecturer at college whose party trick ... > >"I always switched on the stereo", he said. "Try it next time >you're there and listen - it hums a >perfect concert A" Something,s not right here. If in England where the power is 50 Hz, the hum harmonics would be 100 Hz, 200 Hz, 400 Hz. That's not very close to 440. If in the US with 60 Hz power, the hum harmonics would be 120, 240, 480 Still not very close to 440. Not what I'd call a "perfect" concert A. What' up with that? Or Are they close enough that nobody can tell the difference? --------------------------------------------------------------------------------- John Burch West suburban Chicago o|||||||o The surest sign that intelligent life exists in the universe is that it has never tried to contact us. Calvin of Calvin & Hobbes --------------------------------------------------------------------------------- _______________________________________________ post: [email protected] unsubscribe or set options at https://pegasus.memphis.edu/cgi-bin/mailman/options/horn/paxmaha%40yahoo.com ____________________________________________________________________________________ We won't tell. Get more on shows you hate to love (and love to hate): Yahoo! TV's Guilty Pleasures list. http://tv.yahoo.com/collections/265 _______________________________________________ post: [email protected] unsubscribe or set options at https://pegasus.memphis.edu/cgi-bin/mailman/options/horn/archive%40jab.org
