[sdiy] Roland 80017a clone and "refurbishing"?

[Nicholas Gregorich]

On Oct 2, 2006, at 1:02 PM, Samppa Tolvanen wrote:

> On 10/2/06, Tom Arnold <xyzzy at sysabend.org> wrote:
>
>> Yes, I've got one of these in my 106.  Sounds perfect.  I wish the  
>> price was
>> less but at 60Euro its not bad.  All standard parts as I've  
>> mentioned before
>> ( LM13700's I think, now I cant remember.  Either 13600s or  
>> 13700s... ).
>
> Hmm... So, Your synths voices are stable and cool with no tuning..
> Fine :D Just try again with a scope. My MKS-30 arrived with all
> filters detuned.. or maybe one filter was in tune? Yup, no resonance
> trimmers, maybe those should be inserted too..
>
> Samppa

I thought there were resonance trimmers.  There are 4 per voice.   
Maybe cutoff, resonance, gain, and DC offset.