Potato Cakes
Well-known member
I did use screened cable for the gain pots and made sure that there was a connection in the screen all the way back from the input XLR but did not connect it to the PCB as I ran the ground and chassis connections separately. The documents are a bit vague and I spent heaps of time go back and forth with original schematic to understand what was going on with the boards I had.
Also of note, I getting ready to do a version 2 of my custom build and I am using JLM's swithmode PSU with his Trek2 DC converter to eliminate the need to be concerned about toriodals in the case causing noise. It's supposed to be able to power four 1290 modules.
Curious to see how your input transformer experiment works.
Thanks!
Paul
Also of note, I getting ready to do a version 2 of my custom build and I am using JLM's swithmode PSU with his Trek2 DC converter to eliminate the need to be concerned about toriodals in the case causing noise. It's supposed to be able to power four 1290 modules.
Curious to see how your input transformer experiment works.
Thanks!
Paul