Analogue systems

I want to put two small Doepfer modules in an old AS case containing the basic AS system.. The case is a 6u thing with no fuses on the power rails, (nor Doepfer sockets!)

I am using two of those adpators purchased from Analogue Haven...I know they are meant to be used to plug AS into Doepfer, but I can't see why they can't go the other way.

However, I am getting very wierd, fluctuataing, low voltages, so low they hardly light up the clock and lfo led's on the AS system.No magic smoke, but not good .

All went back to normal when I took the Doepfers out. I have checked that the -12volts pins are properly aligned and not upside down...can't understand what the problem is....any ideas?

PS the Dopefers are a A-150 dual VCS, and a A-160 Clock divider, replacing the RS -100 Low pass filter, which I dont use much...should'nt be excessive power requirements, (I guess...)


Any ideas would be appreciated!

Slowalan

I agree it seems like it should work both ways, but perhaps there is some
asymmetry in the connections.  You should ask the Doepfer yahoo group about
this-- the adapter from Analogue Haven was actually made by Doepfer.

On Thu, Apr 22, 2010 at 10:22 PM, slowalan <slowalan@cirruscomms.com.au>wrote:

>
>
> I want to put two small Doepfer modules in an old AS case containing the
> basic AS system.. The case is a 6u thing with no fuses on the power rails,
> (nor Doepfer sockets!)
>
> I am using two of those adpators purchased from Analogue Haven...I know
> they are meant to be used to plug AS into Doepfer, but I can't see why they
> can't go the other way.
>
> However, I am getting very wierd, fluctuataing, low voltages, so low they
> hardly light up the clock and lfo led's on the AS system.No magic smoke, but
> not good .
>
> All went back to normal when I took the Doepfers out. I have checked that
> the -12volts pins are properly aligned and not upside down...can't
> understand what the problem is....any ideas?
>
> PS the Dopefers are a A-150 dual VCS, and a A-160 Clock divider, replacing
> the RS -100 Low pass filter, which I dont use much...should'nt be excessive
> power requirements, (I guess...)
>
> Any ideas would be appreciated!
>
> Slowalan
>
>  
>


[Non-text portions of this message have been removed]

This is the schematic from Analogue Haven that you probably already studied.
If not here it is:

http://www.analoguehaven.com/usercomm/conversion.jpg

Top is AS bottom Doepfer.


grtz

Ernst



On Fri, Apr 23, 2010 at 5:04 PM, Monroe Eskew <monroe.eskew@gmail.com>wrote:

> I agree it seems like it should work both ways, but perhaps there is some
> asymmetry in the connections.  You should ask the Doepfer yahoo group about
> this-- the adapter from Analogue Haven was actually made by Doepfer.
>
> On Thu, Apr 22, 2010 at 10:22 PM, slowalan <slowalan@cirruscomms.com.au
> >wrote:
>
> >
> >
> > I want to put two small Doepfer modules in an old AS case containing the
> > basic AS system.. The case is a 6u thing with no fuses on the power
> rails,
> > (nor Doepfer sockets!)
> >
> > I am using two of those adpators purchased from Analogue Haven...I know
> > they are meant to be used to plug AS into Doepfer, but I can't see why
> they
> > can't go the other way.
> >
> > However, I am getting very wierd, fluctuataing, low voltages, so low they
> > hardly light up the clock and lfo led's on the AS system.No magic smoke,
> but
> > not good .
> >
> > All went back to normal when I took the Doepfers out. I have checked that
> > the -12volts pins are properly aligned and not upside down...can't
> > understand what the problem is....any ideas?
> >
> > PS the Dopefers are a A-150 dual VCS, and a A-160 Clock divider,
> replacing
> > the RS -100 Low pass filter, which I dont use much...should'nt be
> excessive
> > power requirements, (I guess...)
> >
> > Any ideas would be appreciated!
> >
> > Slowalan
> >
> >
> >
>
>
> [Non-text portions of this message have been removed]
>
>
>
> ------------------------------------
>
> Yahoo! Groups Links
>
>
>
>


[Non-text portions of this message have been removed]