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Message

Re: HAWK-800 - update

2009-08-13 by korgpolyex800

Thanks for that. I really appreciate it.

2.9Khz is within the spec noted in the Poly documentation. But I wonder what everybody else has for a EG clock rate?

Mike.

--- In korgpolyex@yahoogroups.com, Ullrich Peter <peter.ullrich@...> wrote:
>
> Hi Mike!
> 
> >I have another favor to ask of people. If any of you have a frequency counter I would like to know 
> >what the frequency of the RES7.5 clock is on your Poly. You can measure the signal at IC36 pin 7. 
> >This is the clock that determines the rate of the envelope generators.
> >The circuit description documentation says that this clock can be anywhere from 2,400 to 3,600 hz. 
> >Now that is a huge variation. If the variation is that big then alot of Poly 800 envelope generators are 
> >going to have faster or slower envelopes. Since I'm trying to implement velocity sensitivity, I really 
> >need to know what the clock is more likely to be. I know most of you don't have frequency counters 
> >but even a reading from a CRO would be enough.
> >Any and all help is much appreciated.
> 
> I opened my Poly800  Mk I and measured the frequency on Pin 7 of IC36 (TL072). 
> 
> As both of my frequency counter are defect at the moment I had to measure the frequency with my DSOs built in
> measurement routines: It is 2,94kHz
> I crosschecked with the period time and its OK.
> 
> Ciao
> Peter
> 
> http://come.to/synpro
>

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