Home › Forums › Help/Technical Questions › Tube Zipper output trails off… then comes back after a rest.

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  • June 23, 2009 at 1:16 pm #78461
    fikus
    Member

    The volume on my Tube Zipper slowly dies out after a few minutes of playing. If I disengage it for 5-10 seconds, it usually comes back to life a little, then slowly disappears again.

    It also has been taking a longer time than usual to warm up and come to life when I plug in the Electro Harmonix power supply. And I have to crank the Master Volume knob up to ~4 o’clock just to get a decent level out of it.

    Are these symptoms of my Tubes dying? Something else?

    June 23, 2009 at 3:38 pm #98286
    julian
    Moderator

    It wouldn’t hurt to throw a few different 12ax7s in there and see if it makes a difference.

    June 23, 2009 at 4:13 pm #98290
    fikus
    Member

    Yeah I wish I had some 12AX7’s laying around to test.

    Do you know what tubes come stock with the Tube Zipper? Mine has some made in China 12AX7b’s.

    June 23, 2009 at 4:29 pm #98291
    julian
    Moderator

    I don’t know, no. :(

    June 23, 2009 at 5:36 pm #98293
    electro-melx
    Moderator

    Stock is has 2x Electro-Harmonix 12AX7’s (according to this here website anyway)

    June 23, 2009 at 6:00 pm #98294
    fikus
    Member

    That’s what I thought. I bought this one used so I guess someone replaced the tubes at some point.

    I hope this is just a matter of replacing old tubes…

    June 23, 2009 at 9:58 pm #98305
    julian
    Moderator

    You could just take it to a store and be like “I think thisneeds new tubes, can I try some?” And then plug it in and see if that makes a dif.

    June 24, 2009 at 7:42 am #98324
    fikus
    Member

    Thanks! Good idea. I gots to get my hustle on.

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