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These are the archives from Mark Longo's original Hammond List, 1994-97



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Re: tone wheel or electronics ?



   Date: Tue, 9 May 1995 14:34:37 -0600 (MDT)
   From: John Fisher <John.Fisher@m.cc.utah.edu>

   On the down side of things, tone wheel generation  does
   not produce an even tempered scale.  

Huh?  Whaddaya mean?  Sure it's even tempered.

                                        THE NEAT THING SOUND WISE is that 
   every note is absolutly phase locked - ZERO beat frequencys -VERY important
   and even more so when played through a leslie on fast speed. 

Huh again?  How do you mean phase locked?  There's no locking
mechanism happening and the 1.5 and 3rd harmonics will be beating with
the fundamental.  Especially if you crank it a little.

           Tone wheel generators are fairly pure sine wave sources locked 
   solidly in sync. 

Huh yet again.  Exactly what kind of sync is this?  And how pure do
you think those waves are?  Pure sine waves are pretty boring.

                    Can this be done digitally - hard to divide a number by 
   5 or 3 ect. and not have a remainder (beat).

Nah; it's trivial.

  -- Don


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