[sdiy] OBX-a Poly mod

[Florian Anwander]

Just as a recommendation if you work on the Polysix: Try to use the 
suboscillator signal instead of the VCO signal. Subosc FM on the cutoff 
frequency is great.


Am 05.10.25 um 15:00 schrieb ulfur hansson via Synth-diy:
> this is amazing, can't believe I missed that!
>
> a perfect solution for me, as i dont need VC depth, and I dont use the 
> LFO on the bender board at all either. I'll implement this using 2164 
> chips rather than OTA's, and hopefully manage to derive triangle waves 
> from the 3340 chips without problems and report back.
>
> thank you!
> -úlfur
>
> Sent from outer space
>
>> On 5 Oct 2025, at 11:31, Terje Winther 
>> <terje.winther at wintherstormer.no> wrote:
>>
>>  I just want to add….
>>
>> Jürgen Haible explained what he did with his Oberheim OB-8 here:
>> http://jhaible.com/legacy/hj_pmob8.html
>>
>> I used this as a starting point for me doing the same on an Korg 
>> Polysix. Sound examples and a snippet of a photo here:
>> https://soundcloud.com/terjewinther/polysix-test
>>
>>
>>
>> Terje Winther
>> terje.winther at wintherstormer.no
>> http://wintherstormer.no/
>>
>>
>>
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