Results 1 to 3 of 3

Thread: Question regarding PRS sweet switch

  1. #1
    Join Date
    Sep 2006
    Thumbs Up/Down
    Received: 0/0
    Given: 0/0
    Rep Power

    Question regarding PRS sweet switch

    Trying to duplicate the "sweet switch" arrangement from an '90 PRS in an LP. I can get the switch assembly at a dealer for about $60, which I think is a bit steep for a DPDT toggle and a small resistor/cap network. I have a part number off my PRS, but can't cross it to any manufacturer. The part number appears to be:



    I'm sure I can find a three-wafer rotary switch to do the selector switch using four-wire pickups, but it might be dicey finding a rotary with the splined shaft. I think Stew-Mac offers a rotary, but with a smooth shaft.

    Any help'd be appreciated.


    0 Not allowed! Not allowed!

  2. #2
    Senior Member
    Join Date
    Apr 2007
    sydney australia
    Thumbs Up/Down
    Received: 0/0
    Given: 0/0
    Rep Power
    why not use the smooth shaft and use a knob that has a grub screw to tighten it, might be best to put that for all the knobs to get it looking uniform. i did pick up a rotary switch a while ago with this idea in mind, havent done it yet though, but i need to make a guitar to do it on.

    0 Not allowed! Not allowed!

  3. #3
    Pickup Maker David Schwab's Avatar
    Join Date
    May 2006
    Staten Island, NY
    Thumbs Up/Down
    Received: 11/0
    Given: 6/0
    Rep Power
    The Sweet Switch is not a resistor/cap network. Eric Pritchard who worked for PRS wrote this:

    Paul Smith called me sometime over 20 years ago and relayed the Carlos Santana's complaint that when he was playing with a wireless, the guitar was too trebly. I suggested that it was created by using a short cord instead of a long jack cord. Well, having a long cord was not too workable, even wound up, so I suggested using a delay line. After messing around with a bunch of lines and investigating the market, Paul settled on a 75 ohm, 150 nanosecond, 10 section delay line and then put it on a double pole double throw mini toggle switch so it could be switched in and out.

    In retrospect and considering the work I have done since, it probably can be done with a resistor-capacitor network as well - rather like in the high-end cables.
    So it's actually a passive delay line. These are used in communications applications.

    But you can probably do the same thing with a resistor/cap network.

    The StewMac rotary switch does have a coarse-knurled split shaft. You can buy the exact same switch with a smooth shaft in Radio Shack for $2.

    0 Not allowed! Not allowed!
    It would be possible to describe everything scientifically, but it would make no sense; it would be without meaning, as if you described a Beethoven symphony as a variation of wave pressure. Albert Einstein

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. To add a standby switch or not?
    By daz in forum Mods & Tweaks
    Replies: 5
    Last Post: 02-14-2007, 01:38 AM
  2. Standby switch question
    By Matt T. in forum Theory & Design
    Replies: 4
    Last Post: 02-08-2007, 08:11 PM
  3. CK switch on first stage
    By Fred G. in forum Mods & Tweaks
    Replies: 7
    Last Post: 01-06-2007, 01:32 PM
  4. switch between
    By angelo in forum Guitar Tech
    Replies: 0
    Last Post: 08-03-2006, 12:18 AM
  5. V-4B Ultra Lo switch
    By Dave M in forum Maintenance, Troubleshooting & Repair
    Replies: 5
    Last Post: 06-07-2006, 01:12 AM


Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts