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Doepfer

Index last updated: 2026-04-29 00:15 UTC

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Re: Setting intervals

2003-12-23 by shm1400

I recently emailed Dieter Doepfer with this very question.  He told 
me that the range of the tuning knob is set by the resistor R5, 
which is a 1M from the factory.  Reducing the value of this resistor 
increases the tuning range. The service manual for the A110 on the 
A110 info page shows this resistor clearly. When asked to suggest a 
value that would give a +/- one fifth (like a minimoog), Mr. Doepfer 
suggested a 270k.   Alternatively, he suggested a 500k trim pot to 
set the range more precisely.

I haven't done this mod yet, but I will let you know what happens 
when I do.  (When I do it, I also plan on adding extra jacks for the 
soft sync and linear FM inputs on the A110 board.  Looks like there 
is just enough space on the front panel)




--- In Doepfer_a100@yahoogroups.com, "dwaldman6" <dwaldman61@c...> 
wrote:
> I have a Basic System 2, with 2 A-110's.  I notice that panning 
> one oscillator hard left and the other hard right givesonly minor 
> separation.  Is it possible to detune the oscs to produce a major 
> 5th, 6th or 7th?

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