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Re: [korgpolyex] AtomaHawk FM-800 - major improvement

2010-01-05 by Atom Smasher

On Tue, 5 Jan 2010, korgpolyex800 wrote:

> The digital potentiometer that was used in the AtomaHawk is actually a 
> quasi audio pot (Dallas DS1666+ 10K). It uses two resistor ladder 
> networks to fake being a logarithmic pot. The range of the pot is 0-127 
> where the first half of the range has a slope X and the second half has 
> a slope 2 times X. This gives two different gradients that approximate a 
> crude log scale. It works well in car radios but the problem with the 
> AtomaHawk is that the FM-800 mod is feeding the DCO signal into the VCF 
> on a linear control. This causes the modulation (LFO and EG3) to operate 
> the range of the FM-800 at two different rates.
===============

reminds me of the fact that most "log taper" pots are actually two linear 
regions forming a "bent knee" shape. will this optimization also apply to 
the moog-slayer, under atomahawk control?

haha... (TV voice:) "how much would you pay for this extra feature? $100? 
$200? $300? mike, please tell the existing hawk-800 users how much this 
upgrade will cost... drum roll please..."


-- 
         ...atom

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