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  • January 15, 2009 at 10:28 pm #77552
    ohulahanbass
    Member

    Hi,

    I am in love with my bass balls but the pedals gain is sooo dramatic. In order to switch the effect on and of durring a song I have to turn my amp up and down significantly leaving a gap in play. I opened it up and noticed two trim pots on the circuit board, one labeled 200Hz and one labeled 800Hz. Can anyone tell me what these pots do?

    I want to achieve my favorite setings at unity gain, is this possible?

    I have the same problem with my MuTron, my qtron however doesnot have this problem.

    January 15, 2009 at 10:37 pm #90836
    Ned Flanders
    Moderator

    I’m not sure what the trims do but you can easily add a volume controll to any pedal, just wire in a 100kB pot on effect out before the switch, that way you bypassed signal is normal and your effected signal is whatever you set it at.

    January 15, 2009 at 10:44 pm #90837
    julian
    Moderator

    Hz are frequency levels, I’d say those trims have something to do with the sweep, thus you shouldn’t touch

    January 15, 2009 at 10:57 pm #90838
    ohulahanbass
    Member

    Ned- Will the extra pot have any effect on the tone, dist., or sweep? I only want to effect volume.

    Thanks

    January 15, 2009 at 11:31 pm #90840
    Ned Flanders
    Moderator

    No, it will only effect the output volume of the effected signal. If the bassballs is distorting a bit you could always wire the pot on the input of the effect in to reduce gain a little bit, I would experiment with both ways to see which is better to you. However if its fine but just too loud I would put the volume control on the effect output.

    January 16, 2009 at 4:57 am #90878
    McHaven
    Moderator

    The two trimpots in the bass balls control each frequency filter. Since the Bass Balls is a twin dynamic filter, you can adjust each filter and its frequency center

    January 17, 2009 at 12:51 am #90964
    ohulahanbass
    Member

    I have the nano series bass balls, I can’t seem to find which connection is between the effects out and the switch. The circuit board is real hard to follow. Am I out of luck for having a nano? Or just out of my league?

    Is there anything else I can do to get closer to unity gain?

    January 17, 2009 at 1:50 am #90967
    jonphipps
    Member

    Hi guys!

    I think Ned has the right idea, is the switch true bypass?

    If it uses the 3pdt switch, wired for true bypass then here is a great demonstration of how it is wired:

    http://gaussmarkov.net/wordpress/thoughts/wiring-up-a-1590b/

    Your new volume pot (which may aswell be a little preset one) would be inserted between the yellow wire in the diagram and the top right corner tab of the switch. I think you would wire the wiper of the pot to it’s ground (correct me if i’m wrong with this!) and send the signal out of the pot via the wiper…

    If that’s not right please say so guys, pedal repair is a side hobby of mine!

    January 17, 2009 at 1:52 am #90968
    jonphipps
    Member

    P.S. the ‘yellow wire’ is only reference to the diagram on that link, i’m not saying there’s a yellow wire in your pedal, but your be able to find which wire is the output of the circuit by working backwards from the switch :)

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