MOTM

But if you use a passive RLC for each note, wouldn't
you need as many RLCs per note as there are switch
positiions on the control panel? There's a
"Brilliant/Mellow" lever, and also a "Brilliant Tone"
knob with 4 positions... that switch would then
mechanically switch between different filter circuits
per note? I don't get it...  at least the
brilliant/mellow switch seems to mechanically adjust
each note:
http://www.organhouse.com/images/novafullopen.jpg

Are there any schematics online? Damn. Can't find
any...

Dino



--- John Loffink <jloffink@...>
wrote:http://www.organhouse.com/images/novakey2.jpg

> There are eleven 6W7G tubes per tone, plus an
> additional three unspecified
> tubes per oscillator.  The filters in the Novachord
> appear to be passive RLC
> circuits.  There is no need for voltage control when
> there's a filter for
> each note.
> 
> John Loffink
> The Microtonal Synthesis Web Site
> http://www.microtonal-synthesis.com
> The Wavemakers Synthesizer Web Site
> http://www.wavemakers-synth.com
> 
> 
> > -----Original Message-----
> > From: motm@yahoogroups.com
> [mailto:motm@yahoogroups.com] On Behalf Of Dino
> > Leone
> > Sent: Monday, December 12, 2005 12:11 AM
> > To: Paul Schreiber; motm@yahoogroups.com
> > Subject: Re: [motm] Re: The world's first
> synthesizer....restored!
> > 
> > 
> > 
> > Well, after listenting to those samples for about
> the
> > 10th time since yesterday, I think I would be
> willing
> > to go that far. However, there's another issue: a
> very
> > basic 12AX7 tube is around $12... a Novachord uses
> > what, something over 100 tubes? And I'd bet
> something
> > those are not all 12ax7, so the tubes alone would
> > probably be close to $2k, then add all those
> matched
> > caps.... I guess not for this Xmas' budget... :-)
> > 
> > In all seriousness, just how would a tube-based
> > bandpass or lowpass filter sound? Anybody any
> ideas???
> > 
> > 
> > Dino
> > 
> 
> 
> 
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