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Pictures of a Push/Pull configuration?

Discussion in 'Pickups & Electronics [BG]' started by Groover, Mar 2, 2006.


  1. Groover

    Groover

    Jun 28, 2005
    Ohio, USA
    I'm a little confused with the parallel/series configuration for a Jazz bass. I've seen a bunch of different schematics, but seems as if some people are using a push/pull pot and some a dpdt switch, some both?

    Totally confused. I'd like the push/pull put configuration better, seems as if it would be a cleaner setup (no extra hole for a switch).

    Does anyone have a picture of their cavity control with either one of these configurations?

    Which push/pull pot are you guys using?

    One seller on eBay sells something very interesting. Is this a good configuration?

    http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=7394906569&rd=1&sspagename=STRK%3AMEWA%3AIT&rd=1

    Thanks for the help.
     
  2. anonymous278347457

    anonymous278347457 Guest

    Feb 12, 2005
    I got mine from a guitar shop. it is 500k since they didnt have a 250k one. Mine is in the tone pot.

    if your REALLY nervous you can buy the ebay one,(bit of a rip off since you will have to buy control plate, and 2 extra tone pots which. and you will have to cut wires anyway.)


    but if you know how to solder(just a little bit of knowledge will do). you can get a pot and do it yourself.

    you need to cut 2 wires, tin 4 of them(optional) and then solder 5 things. As for a diagram i cant help you. but...
    http://www.talkbass.com/forum/showthread.php?t=195970
    those were the instructions i used, they are totally idiot proof.

    also, if you do play on doing it, you might want the wiring diagrams from the fender site.
     
  3. bigbeefdog

    bigbeefdog Who let the dogs in?

    Jul 7, 2003
    Mandeville, LA
    Glad to see those instructions are helpful. :D

    Let me try to answer..... I don't think anyone is using "both", unless they're doing something much more complex.

    All you need to add is a single DPDT switch. Problem is, where to put it? As you mentioned, it's easiest to not have to drill an extra hole.

    This is where the push-pull pot comes in. It's a dual device. On the "front end", it's a simple potentiometer; electrically it should be exactly like those already in your bass. In mine, I swapped out the tone pot for the push-pull - just de-solder the pot, and wire in the new one the same exact way (including capacitor). The only reason this is necessary is because the one you're installing has a DPDT switch "piggybacked" on it. From a circuit standpoint, nothing changes.

    Once that's wired in, all you have to do is rewire the pickup leads as described in the thread thedonutman linked above.

    As for the switch.... I used the 250K version of this:

    http://www.stewmac.com/shop/Electro...pots/3/Potentiometers_and_Push-Pull_Pots.html
     
    G-fresh likes this.
  4. ghindman

    ghindman

    Feb 10, 2006
    You should also be aware that it's generally desirable to use an audio-taper pot for volume, and a linear-taper pot for tone controls.

    I was poking around on this topic, last night and ran across this diagram, as well:
    http://acapella.harmony-central.com/forums/showthread.php?s=&threadid=250926

    The volume/volume/tone diagram at the bottom should be the one you're looking for. In order to make that mod, from stock, you'll need to replace the tone pot with a 250k linear-taper push/pull pot.
     
  5. Groover

    Groover

    Jun 28, 2005
    Ohio, USA
    Ok, you guys have clarified the confusion I had. The diagram bigbeefdog typed-up in the other post makes perfect sense to me (I guess I needed to see the push/pull diagrams in a vertical view)

    Thank you very much for the quick replies. I understand it now :D