Aguilar OBP-3 with sweepable mids

Discussion in 'Pickups & Electronics [BG]' started by suraj, Nov 26, 2013.


  1. suraj

    suraj

    Joined:
    Oct 1, 2008
    Messages:
    743
    Location:
    Mumbai, India
    Hey,

    So for my first bass build I need some help with some electronics knowledge. I want to install an Aguilar OBP-3 with sweepable mids. A few things I am confused about -

    1. The Aguilar OBP-3 wiring diagram option #8 states that one needs to use a separate pot that selects the centre frequency of the mids. For this they mention to use a DUAL 500k Linear taper pot.

    Isn't this the same as a linear 500k blend pot ? if not, can a blend pot be used (with a different wiring scheme) instead of the special pot aguilar mentions ?

    2. Can someone link me to a resource where i can buy such a pot that will have a threaded portion long enough to go through the top of a Bass cavity. (NOT a pick guard mount)


    Is this the right pot - ?

    http://www.ebay.com/itm/500K-OHM-Li...tiometers-B500K-500KB-POT-ALPHA-/260944291487


    3. Also, once I achieve this sweep from what they mention as 400hz to 800hz, can I somehow rewire it in a way that will give me a range from 200 or 250hz to 800 hz ? Their schematics show that with use of certain capacitors, one can increase the frequency range, but haven't shown that on the mid sweep pot diagram




    Thanks in advance.
     
  2. line6man

    line6man

    Joined:
    Jun 20, 2008
    Messages:
    12,593
    Location:
    Close to Los Angeles, CA
    A dual-ganged pot is not the same as a blend pot. A blend pot is designed in such a way that the sweep is spread out over only one-half of the rotation, on each gang, so that at any given point in the rotation, one gang will always provide a direct connection from its wiper terminal to one side.
     

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