26-12-2011, 12:15 PM
Hello Rob, is pin 4 on the UL41 connected to anything? It is only used as a connection point, and serves no other purpose,
I had this problem with a DAC10, just snipped the connection and left the wires connected but suspended below the valve base,
it greatly reduced the hum.
I had this problem with a DAC10, just snipped the connection and left the wires connected but suspended below the valve base,
it greatly reduced the hum.







