[sdiy] Yamaha IG00159 internals

Nicholas Keller niroke at tampabay.rr.com
Wed Jan 18 04:01:23 CET 2017


Thanks anyway, Tom!

> On Jan 17, 2017, at 5:49 PM, Tom Wiltshire <tom at electricdruid.net> wrote:
> 
> Sorry, I had a look, and it was the GX-1 filter envelope that I copied - you know, the weird one with the 0V sustain level. That's quite different form the much-more-normal amplifier envelope.
> 
> Tom
> 
>> On 17 Jan 2017, at 15:20, Nicholas Keller <niroke at tampabay.rr.com> wrote:
>> 
>> Yes please. A friend of mine has a CS-10 with a bad envelope.  He is a very talented but starving artist. He can't afford the $65 that is being asked on eBay.  I thought I might be able to "make" him one for a fraction of the price. 
>> 
>>> On Jan 17, 2017, at 8:54 AM, Tom Wiltshire <tom at electricdruid.net> wrote:
>>> 
>>> Is that the CS-80 envelope chip? I think I wrote a PIC-based copy of that for Old Crow. It was yonks ago now. It's not a drop-in replacement, but a functional clone. I can dig the details out if you're interested.
>>> 
>>> Tom
>>> 
>>>> On 17 Jan 2017, at 13:05, Nicholas Keller <niroke at tampabay.rr.com> wrote:
>>>> 
>>>> Does anyone know of an internal diagram for the IG00159 amp EG chip?  Or has someone made a stand-in circuit for the chip alone?
>>>> 
>>>> Thanks 
>>>> 
>>>> Nick
>>>> 
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>>> 
>> 
> 





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