hi tom,
by comparing my moded and unmoded a155's i saw that
the moded a155's really can be clocked even from saw
waves and run normally(that's a bad thing,isn't
it )and,also they step correctly when you manually
step them with the step button,not as the unmoded a155
do...
bakis.


--- Tim Stinchcombe
< timothy@... > wrote:

> Hi Bakis,
> Thanks for the info.
>
> > if the mod is a resistor and a capacitor in the
> a155
> > control board,then this is the mod i was telling
> you
> > about...it's the mod for letting you clock the
> a155
> > from an imperfect clock pulse(with not sharp
> > edges).also,with this mod ,you can step manualy
> the
>
> This is part of what I was after - there is also a
> wire from the
> control board to the trigger board (it inhibits trig
> 1 and 2 under
> some conditions), and I was wondering if they were
> both part of the
> cure for some problem. However, that you say the res
> & cap were to
> help it with poor clock pulses raises a few
> questions. I wondered if
> it was for something like this, so I ran a quick
> simulation of that
> part of the circuit, and got the distinct impression
> that it actually
> made things *worse*, which made me think it was for
> some other
> purpose, and that if it was then hopefully the
> degradation of the
> clock pulse would still be acceptable! (The
> simulation _did_ show
> that the clock stops running at some point due to
> the mod, and tied
> in very closely with my measured value - around
> 800Hz.) I shall look
> at the circuit some more, I may be able to figure it
> yet!
>
> Tim
>
>
> > sequencer from the tiny step button more
> > properly(without almost jumping
> > steps...).but,also,this mod stops the a155 from
> > running in high audio frequencies!even if you
> clock
> > the a155 from an a110 you will notice that,the
> a155
> > can't run above a certain speed limit(which is
> rather
> > low!)all these are valid only if we're talking
> about
> > the same mod,though....
> > by the way,i removed this mod from two of my
> a155's
> > because i want them to be graphic vco's too!
> > bakis.
>
>
>

=====
synthfreak(parallel worlds)
athens-greece
1 group owner-moderator

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