« Reply #69 on: February 17, 2006, 11:51:15 AM »
OK folks, just got off the phone with Richard at AKG. His take on the VR tube thing is that it *could* be possible, but the tube provides ground to the circuit.
So find an alternate grounding source and maybe it could work? (these are my conclusions, not his).
His take on it was that the demand wasn't there, so there wasn't any reason to do it. He definitely did not come out and say "it can be done", but once I explained the thought process to him he did concede that it might be possible.
So there you go.
This is EXACTLY what I thought might be going on. Would certainly explain the hum Marc Nutter heard and I believe freeluch had to overcome this problem by running an additional wire - I will have to look at that thread again. Anyway, to me it totally makes sense that the metal tube just acts as a ground, and this should be able to be circumvented by soldering a wire to each of the connections. If it is only a grounding issue, what I envision is cutting and removing the tube 1/2" off the threaded connections, leaving a bit of the tube attached to each end and exposing all the wiring. Then solder a wire to connect the two remaining pieces of tube and enclose all the wiring with a sleeve or tech-flex. Only question is why did the one guy say it's a matter of capicitance? Anyway, strong work and THANKS! +T
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