[HAM] Fold back

[Michael Fulk]

The A-100 has 91 tonewheels.  The lowest 12 are complex tone wheels which
genertae the correct bass notes with an harmonic series, among which are
the fifth harmonic and the third harmonic.

These tones were deemed not acceptable for the manuals.  They can be added
to the manuals, but should be filtered as,  by themselves, they sound like
farts. 

The only Hammond models that had 96 tone wheels were the H-100 and the X-77.

All frequencies above #91, (F#...also the highest frequency available), are
missing from all M series organs, that is, if a key is pressed where a
foldback tone should be, there is only silence.

I know nothing about the current models.
Fulk

> [Original Message]
> From: Gene MacDonald <genem at cushcraft.com>
> To: <hammond at zeni.net>
> Date: 9/14/2006 10:53:58 AM
> Subject: [HAM] Fold back
>
> Greetings...I've recently had the opportunity to sit at an A100 and
> noticed the foldback on the lower manual. I didn't really care for it
> and I've learned that the older model A Hammonds had a lower manual
> where the notes would go all the way down which seems more appealing to
> me. I'm told that the reason for the fold back is the tone generator has
> only 96 tone wheels. There was a model A on ebay recently that was
> upgraded to an AV by adding the vibrato scanner and Trek II percission
> and leslie switching. Are these still desireable or should I stay away
> from one. The cabinet is like the B3 but smaller and that is appealing
> also. How did they get the lower manual notes to go all the way down...a
> larger tone generator? I've heard some of the older hammonds actually
> had two tone generators.  How does the foldback on the newer A,B's and
> C's work?
>
> My M3 is stock and the upper keys are not as loud and the expression
> pedal does not seem to make up the difference and that tells 
>
> me that foldback feature would be a nice addition. Thanks in advance for
> any advise.
>
>  
>
> Gene