CEB Posted August 24, 2019 Share Posted August 24, 2019 Some times my organ channel on the keys submix is noisy. It"s coming from the Vent. In a small rack with a bunch of wall warts and AC devices it"s hard to isolate the power runs from the audio runs. Guitar techs use copper shielding tape to ground single coil pickup equipped guitars. Do you think there would be any value of copper tape in a keyboardist"s rack? https://www.stewmac.com/Pickups_and_Electronics/Shielding/Conductive_Copper_Tape.html Quote "It doesn't have to be difficult to be cool" - Mitch Towne "A great musician can bring tears to your eyes!!! So can a auto Mechanic." - Stokes Hunt Link to comment Share on other sites More sharing options...
J. Dan Posted August 24, 2019 Share Posted August 24, 2019 Depends. Is the noise coming from INSIDE the vent? Is it a metal case that's grounded? If so, tape wasn't do anything. Is the noise being induced on either the signal cables or power coming in? Not all cables have 100% shield. In fact so,e are as little as 50%. I'd try swapping with 100% shield cables. As for power, be careful where transformers are located relative to one another as well as cables. The reason for the foil in guitars is because they are wood bodies. Anything with a metal case that's properly grounded shouldn't require any other means of shielding. Quote Dan Acoustic/Electric stringed instruments ranging from 4 to 230 strings, hammered, picked, fingered, slapped, and plucked. Analog and Digital Electronic instruments, reeds, and throat/mouth. Link to comment Share on other sites More sharing options...
elif Posted August 25, 2019 Share Posted August 25, 2019 Well implemented shielding won't hurt, but it's a question of whether the susceptibility is due to conducted or radiated emission. I suspect conducted. If so, foil or other shielding will have little effect. If it is radiated then you should be able to hear a change in the interference by moving components around. Quote Link to comment Share on other sites More sharing options...
OB Dave Posted August 25, 2019 Share Posted August 25, 2019 Considering the Vent has a metal enclosure, I suspect conducted as well. Copper foil worked wonders on my Rhodes. That's the only time I've ever needed to use it. Quote Link to comment Share on other sites More sharing options...
Al Coda Posted August 26, 2019 Share Posted August 26, 2019 Copper foil worked wonders on my Rhodes. That's the only time I've ever needed to use it. +1 I did the same already in the 70s,- and it worked well on my Clavinet D6 too ! A.C. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.