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I seem to remember reading somewhere, the actual Hammond tone has
some leakage in it from the adjacent tone wheels. So this induced
voltage would mess up the pure sine. Casey














--- In hammond_zone@y..., "Ron Newman" <ron.newman2@b...> wrote:

Before getting a B4 I tried for years to make a layered Hammond

sound with my Korg M1 or Nord synth. There's something different
about the Hammond sound, it's not a pure sine wave.

Although that tone wheel looks as though it would produce a pure

sine wave I wonder whether it does?

Anyone know whether the sound that comes straight off the tone

wheel is actually a pure sine wave. And if it is then the special
Hammond sound is produced by everything after.

And I wonder how Mr Hammond went about it. Is there any literature

about it? Or does anyone know? I mean did he just keep fiddling with
everything, the solenoids, the amplifier, anything else, just
gradually improving the sound over the years? Or was he filing bits
of the tone wheels as well.

Anyone ever tried to make a copy Hammond? I mean absolute copy? Was

it as good? Whoever did would know what parts particularly make the
unique sound.

Ok it's been done electronically, the B4, but mechanically?

Ron.