Perfect, thanks to you (and to Peter).
I revisited the jpg Peter posted and found my answers to #1 and #2
there as well. Funny how it takes a few times before I can see the
fine details.
--- In
Doepfer_a100@yahoogroups.com
, <hardware@...> wrote:
>
> Indeed we did not add this information to the DIY page because
nobody was
> asking. You are the first one.
>
> For the A-143-1 the corresponding capacitor is "C1" (standard value
2.2uF)
> and is located behind the LED that displays the envelope.
>
> Best wishes
> Dieter Doepfer
>
>
> > This looks like a fantastic mod.
> > Forgive my n00b questions here:
> >
> > 1. Is the switch a DPDT ON - OFF - ON (I assume it doesnt matter if
> > its a make-before-break or not)
> > 2. When you say "short across the caps", are you referring to adding
> > capacitors in parallel to the existing timing cap
> > 3. Is the electrolytic the timing cap
> >
> > I checked the DIY page but did not find this mod there.
> >
> > Thanks!
> >
> > --- In
Doepfer_a100@yahoogroups.com
, "Dieter Doepfer" <hardware@>
> > wrote:
> > >
> > > Peter,
> > >
> > > thank's for this idea. We could add the capacitor positions of all
> > > corresponding modules (envelope generators, LFOs ...) to our DIY
page if
> > > there are sufficient inquiries.
> > >
> > > Best wishes
> > > Dieter Doepfer
> > >
> > > > -----Ursprüngliche Nachricht-----
> > > > Von:
Doepfer_a100@yahoogroups.com
> > > > [mailto:
Doepfer_a100@yahoogroups.com
]Im Auftrag von (i think
you can
> > > > figure that out)
> > > > Gesendet: Dienstag, 27. Juni 2006 18:23
> > > > An:
Doepfer_a100@yahoogroups.com
> > > > Betreff: 1 A-143-1 Timebase modification: Fast, easy.
> > > >
> > > >
> > > > Yo.
> > > >
> > > > Bringing my head above ground here for a second to give you the
> > > > scoop on a very easy, yet effective modification to the Quad A/R
> > > > Gen, the A-143-1.
> > > >
> > > > As you know, I like long envelopes. Adding a ON-OFF-ON switch
> > > > which will short in two additional caps across the 143-1's
> > > > 'money' (timing) cap will get you there if you want by adding the
> > > > very same range switch function inherent on the Doepfer ADSR.
> > > >
> > > > I've uploaded a diagram into the photos section of this
> > > > yahoogroup (pardon the snap - it was done on my cell phone).
> > > > It's entotled A143-1mod.jpg. It shows the mod itself (easy) and
> > > > where I opted to locate the switches, which nestled in neatly in
> > > > the blank area above the Voltage Output jacks of EG's 2, 3 and 4.
> > > > In that there wasn't an easy way to integrate the switch into the
> > > > first EG, I left that one alone.
> > > >
> > > > Using an ON-OFF-On switch allows you to to take the additional
> > > > caps out of the circuit altogether if you care to (switch
resting in
> > > > the center position).
> > > >
> > > > BTW - this mod can be added to any EG. All you have to do is
> > > > find the timing cap and short additional caps over it. In this
> > > > specific mod, I used a 47uf on one side of the switch and a
> > > > 150uf on the other. So, long and loooooong.
> > > >
> > > > enjoy (or not!)
> > > >
> > > > - P
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > > Yahoo! Groups Links
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > >
> >
> >
> >
>