• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

How to Build Unbilical from PS to Phono

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I'm finishing my SE tubed phono. Its actually K&K audio Phono boards but with a separated detached off unit power supply located 2+ft away.

How should I phsycially build the umbilical cable between the PS and the phono?

The connections between the PS and phono are B+ (at ~210VDC) the B+ return, filament+, filament- (filament is DC) and a ground wire that runs from the PS chassis to the phono chassis.

I'm thinking to do the following:

Use a sheilded piece of interconnect for the filament + and filament-, use a twisted pair (without shield) for B+ and B+ return. Then lay these wires and the chassis ground wire side by side and envelope with a piece of plastic mesh braid.

Make sense? good idea, bad idea? Would you do some other way, possible braid or twist them all together? Should I also shield the B+ and its return together ?
 
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