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  • April 26, 2012 at 12:52 pm in reply to: Noisy Tube EQ pedal fixed #117409
    Stars of the Lid
    Member

    I am not an expert, too. No connection points there. Loosen the 4 screws on the top, you can remove the upper part then. Be careful, the upper part is still connected with the bottom part, through the power supply wires. Now get some aluminium foil and cut a stripe of 3-4 layers, that has the same height as the pedal. Wrap another layer of paper around the aluminium foil to make sure that it does not conduct anything by accident. Maybe leave a small slint in the paper, fotr the power supply wires tp got through, or place them under the paper. Just place the paper-aluminium-stripe behind the power supply connection. No diagram or wiring here. I will see if I can post a photo of it soon. Just try it, and listen. Just add foil, leave everything else as it is. Listen to you amp, and if the noise is gone, it was right:)

    “Perhaps a small grounded shield around the PSU entry would help alleviate the problem.” – Thats absolutely it.

    March 14, 2012 at 9:16 am in reply to: Noisy Tube EQ pedal fixed #117116
    Stars of the Lid
    Member

    I had the same problem with my new EHX Tube EQ. I searched the web and found this page, with the solution to remove to 12V jack from the pedal housing, to put it out of the housing, and the noise is gone. Worked perfect with mine, too. But as I use it for gigs I did not wanna have the wires stick out of the pedal.

    So I found out that there is an easier way to get rid of the hiss/hum:

    The problem is, that the tubes are not shielded against the electromagnetic interference of the tubes.
    So I opened the pedal, took a piece of self adhesive aluminium foil, and placed it between the power supply jack and the tubes. Make sure that the foil is not touching the wires so it can’t conduct (use another layer of paper, to be sure). And that’s it, all noise is gone.

    As this hiss/hum seems to be a general issue with the Tube EQ, I can’t understand how EHX does not fix this bug in future pedals.

    Now I am totally happy with my Tube EQ, no noise/his/hum anymore. It’s an amazing pedal that does sooooo much to your guitar’s tone. I never expected that would make such a big difference.

    Hope that helps:)

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