To Aesthetix users

Just ran a wire from the receptacle's ground screw to a new screw and hole I drilled in the conduit box. As before ratshack wire says there is now a ground.

I have a shielded supply AC cord on order as per your recommendation.

I think I will use an electrician for the next step!

In the meantime I will be searching for Telefunken 12AX7s to try in the Io's front end.

Thanks to everyone in this thread... audio's a journey...

Patrick

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Patrick,
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Please keep us updated with your progress. It is quite educational.
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Thanks,
Larry
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Hi Cello,

It's funny, I was just wondering whether to post another update because it seemed maybe it was just me and Nkj at this point!

I got the shielded Belden AC cord for the Io and have exactly the same RF - so that's a no-go. (For those interested, it looks extremely similar to the stock cord, and didn't sound quite as nice - perhaps not broken in, perhaps other differences!)

I will be having an electrician in soon to find out whether my outlet is actually grounded at the circuit breaker box.

In the meantime, I'm investigating Telefunken (and other) 12AX7s / ECC83s. Man have the prices for NOS tubes gone up since I was last looking (about 3 years ago).

I just noticed oldvinyl's recommendation to use cryotweaks on the Io for RF rejection. I may try this too.

More updates as they come...

Patrick

Hi Patrick,

Wondered how you were making out. Now no one said this was a science!. At least you're only out some frustration and not alot money so far. I really think the ground issue is a red herring with the RF. To be sure ground is good... But I think you have a positioning problem(think antenna), too much gain problem or interconnect sensitivity problem to RF. Look back on the thread did you clean your connections? A simple move of your equipment could solve these problems if it is possible.

I think audio advisor has some rf clamps that can be attached to cables to mitigate RF. Might be worth a try. If you're really stuck I think I have some of those MF cables I mentioned in my black box of used cables that you could try.. I'm sure we could work out an arrangement for a trial if you wanted to go down that road.

Best,

Nkj

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Patrick,
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I think Nkj has a good point about working to control RF.
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I have some Versalab Red Rollers that are used on IC's for the purpose of handling RF issues. They have worked quite well in my system. You are more than welcome to borrow some to see if they help.
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Email me off line and we can organize getting them shipped up to you.
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Rgds,
Larry
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