[sdiy] SH2000 mod (wavetables)

[Bob Weigel]

Hehe.  yeah it's a divide down square wave arrangement with analog 
oscillator for the high frequency.  All the early Rolands are like 
this.  The Sh3(a) give slider taps off the footages and three position 
switches for each footage to select waveforms.  Sh1000 gives switches 
for waveform variations off them plus presets which are proportional 
mixes of the various footages available.  The SH1000 is the obvious mod 
since you can just replace the switches with sliders which I'm likely to 
do with the parts I have left over from one some day.  The Sh2000 just 
has more presets in leu of the footage/waveform tabs pretty much but 
very similar otherwise as I recall in the signal generation department. -Bob

Graham Atkins wrote:

> I don't think it was a "wavetable" oscillator, this design pre-dates  
> PPG by
> several years.
>
> Graham
>
> On 26 May 2009, at 21:15, Gil W. wrote:
>
>>
>> OK so I have a nice (but old) SH2000 here, which I'd like to have  
>> modded as described in the following review, but I'm not quite sure  
>> I got what this guy meant... Can someone put some light on it please ?
>>
>> ** here's the review **
>>
>> The SH-2000 has a wavetable divider oscillator, and this particular  
>> goody you can actually get access to, and best of all very easily.
>> You simply have to open you SH-2000 and reconnect the wires to all  
>> the preset-rocker-switches - sort of making a straight pass.
>> When this operation is done, you will have some kind of a Roland  
>> SH-2000 "Sigma".(Like The Korg KP-30 Sigma)
>> Goz now you can mix all waveforms simultaniously. Thust me! this  
>> takes the SH-2000 to another level. You will not be disappointed,  
>> coz now it will make sounds that even the grand SH-5 can't do. The  
>> SH-3A has a divider oscillator but not as complex as this one and  
>> the SH-7 has a four octaves Square oscillator but very simple.
>>
>>
>>
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