good pots vs. bad pots

Discussion in 'Pickups & Electronics [BG]' started by heavyfunkmachin, Jan 19, 2009.

  1. heavyfunkmachin

    heavyfunkmachin

    Jan 21, 2005
    hi all,

    i want to know how the hell do i tell apart good from bad pots...

    i mean, i´m looking at ebay... they all look the same to me--- :rolleyes:

    oh, and what are cts pots??

    thanks
     
  2. mjolnir

    mjolnir Thor's Hammer 2.1.3beta

    Jun 15, 2006
    Houston, TX
    Well... CTS pots are an aftermarket brand you can stick into just about any bass, and IMHO they're of great quality, have about 35 of them lying around my apartment here and there ready to be put into any bass that needs 'em.

    Speaking generally, a good pot will be of solid construction, adjust smoothly, and have good contact with the resistive material inside, which to be fair is most of the aftermarket pots out there.
     
  3. debassr

    debassr

    Jan 23, 2008
    Boston
    Good pots, bad pots, you know I've had my share
    Well my woman left home for a brown-eyed man
    But I still don't seem to care
     
  4. Phalex

    Phalex Semper Gumby Supporting Member

    Oct 3, 2006
    G.R. MI
    If you don't cough, you don't get off.
     
  5. About pots, does anybody know of pots with steps, for instance 11 from 0 to 10 or even 21?
     
  6. Phalex

    Phalex Semper Gumby Supporting Member

    Oct 3, 2006
    G.R. MI
    Like multi-turn pots? I use em at my job, don't know how they'd work on a bass.
     
  7. I haven't seen good pots since my college years.
     
  8. I mean a potentiometer with a certain number of clicks. This way when you have a sound you like, you can remember for instance "3 clicks on the P, 7 clicks on the J, 8 clicks on the tone".
     
  9. Ok, I found out that the part I described is called a stepped-attenuator, and that they retail from around $20 to $150 based on if you are ready to solder your own resistors or want a pro-model.

    They use them in the higher-end audio.
     
  10. Phalex

    Phalex Semper Gumby Supporting Member

    Oct 3, 2006
    G.R. MI
    Hmmmm......

    Sounds interesting. Got a link?
     
  11. fretlessman71

    fretlessman71 Still beats havin' a job Supporting Member

    Aug 8, 2005
    FoCo, NoCo
    All I know is that bad pots will leave you with nothing but a sore throat and a bad case of the munchies... ;)
     
  12. mjolnir

    mjolnir Thor's Hammer 2.1.3beta

    Jun 15, 2006
    Houston, TX
    From what it sounds like, you seem to be talking about a simple rotary switch, the same switch used in the old Gibson Varitone switches.

    You can find one at allparts: http://www.allparts.com/store/electronics-switches-ep-0920-000,Product.asp
     
  13. Phalex

    Phalex Semper Gumby Supporting Member

    Oct 3, 2006
    G.R. MI
    Or is it a pot with detents that click every so many degrees of rotation? Photos would be cool, or a link to a site that sells em.
     
  14. Well, what I am talking about is a stepped attenuator. Instead of getting resistance from the piece of circuitry the brush contacts with, you get resistance from ... resistors.

    A 24-stepped (quite common with high-end audio devices) attenuator has 23 resistors soldered behind (none for the position with no resistance).

    All these resistors look like these ladders or scaffolds that ants make sometimes, it's pretty odd-looking.

    You end up soldering a lot of resistors and run the risk of messing up, but the advantage is a very scalable control of your Db level. There are spreadsheets that give you the values of your resistors and the result on the evolution of the Dbs based on different levels of sound.

    For electric guitars, it may be a little bit overkill, but it may be great to accurately dose the balance on the pots.

    They are also bulky in the back.

    I have found a kit on eBay for $9.99 a piece without the resistors (which you can always buy in bulk).

    Of course, I have to test it myself :)
     
  15. Johnny Mack

    Johnny Mack Guest

    Jun 8, 2007
    Englewood, FL
    easiest solution: dont use them.
     
  16. ashtray9

    ashtray9 Guest

    Aug 1, 2002
    Tempe Arizona
    Be safe and don't buy pots from someone you don't know. Once bought pots containing formaldehyde.