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DIY A/B/Y box?

Discussion in 'Amps and Cabs [BG]' started by petrthumb, Aug 24, 2007.

  1. petrthumb


    Nov 4, 2006
    Blandon, PA
    Anyone out there know where I can find a schematic and parts list for an active A/B/Y box? I would try the passive box but I'm afraid of the hum associated with it.

  2. Try this:
    Yes, it's passive.
    The important thing is this design shunts/grounds the "off" output jack, which should eliminate the hum and buzz that you're worried about.
  3. petrthumb


    Nov 4, 2006
    Blandon, PA
    Thanks, but I need an A/B/Y with the "Y" being both outputs on. Basically a splitter to go to two amps at the same time.

  4. anderbass


    Dec 20, 2005
    Phoenix. Az.
  5. If you want an A/B box with a "both on" option, why not get one of these for about a hundred bucks: http://www.whirlwindusa.com/selec.html
    Or you could add another switch to the Fulltone design to achieve the same functions for less than fifty bucks.
    If you have more money to spend, you could get one of these:
    http://www.voodoolab.com/ampselector.htm (for about $230).
    Here's another one that's really nice:
    http://www.lehle.com/frameset.php?country=us&lang=en&A_Link=products (for about $370).
    Here's another one (for about $240):
    If your main reason for building your own box is to save money, I'd add a "both-on" switch to the Fulltone box and call it a day. That should work plenty fine.

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