Hi Diego,

It looks like the modules are mounted directly on wood without an earthing plane. If that’s the case it might well cause problems.

Best
John

> On 12 Jun 2018, at 13:06, Diego Ragnini diegora@... 1 < Doepfer_a100@yahoogroups.com > wrote:
>
> Hi thanks everybody for replying
>
> The situation was vague indeed, sorry, though the patch is very basic
> The case is just 1 row (LC3)
> As you can see by the colours on the following screenshot, the multed audio 1 signal (red cable) is slightly affected by the audio 2 signal (blue cable), as we turn CW the A-138s channel volume knob.
>
> Nothing else is patched/ engaged.
>
> I unfortunately have no means nor expertise for measuring anything.
> ASAP I will first try installing the multiple on another case.
>
> Best, Diego
>
>
> <Patch.png>
>
>> Il giorno 12 giu 2018, alle ore 10:25, John Hollis john@... 1 < Doepfer_a100@yahoogroups.com > ha scritto:
>>
>> Hi Diego,
>>
>> It does sound like there might be a short between the adjacent modules. Can you check for that
>>
>> Thanks
>> John
>>
>> > On 12 Jun 2018, at 08:57, yahoo@... 1 < Doepfer_a100@yahoogroups.com > wrote:
>> >
>> > Hello,
>> >
>> > the A-138s is a very simple module (just a standard mixer circuit with
>> > operational amplifiers) and I have no idea how the signal could crosstalk to
>> > any other module.
>> >
>> > Best wishes
>> > Dieter Doepfer
>> >
>> > > -----Ursprungliche Nachricht-----
>> > > Von: Doepfer_a100@yahoogroups.com [mailto: Doepfer_a100@yahoogroups.com ]
>> > > Gesendet: Montag, 11. Juni 2018 15:09
>> > > An: Doepfer_a100@yahoogroups.com
>> > > Betreff: 1 Interferences from A-138s into LC6
>> > >
>> > >
>> > > Hello, I have a WMD buffered multiple which suffers from A-138s
>> > > mixer interferences, both powered by an LC6 Doepfer case. Is the
>> > > WMD faulty or its cable A-138s output can be heard on the WMD,
>> > > unless knob's fully CCW. I also see that the multed signal is
>> > > louder that the original one. Any hint is welcome.
>> > >
>> > > Best regards,
>> > > Diego
>> >
>> >
>> >
>>
>>
>
>
>