On 01.11.15 08:01 , XCVII supraleiter@... 1 wrote:

> Considering building a shielded external box for tank and using XLR connection.

Why do you try to remove the symptom instead of healing the cause
Remove the transformer from the powersupply pcb, build an external box
for the transformer and feed the low-volt-AC via an socket into the
doepfer case. This would be much easier.

This is the solution, I choose on my Wurlitzer 200, where the
transformer causes hum in the pickups. The MU-shield for the Wurlitzer
pickup row would cost around $150. The housing for the transformer and
the connectors costs $20.

Florian