Results 1 to 4 of 4

Thread: Toggle To Select Using EITHER a 3-Way Switch OR a Blend Pot?

  1. #1
    Member
    Join Date
    Nov 2010
    Location
    DC
    Posts
    145
    Thumbs Up/Down
    Received: 0/0
    Given: 0/0
    Rep Power
    9

    Toggle To Select Using EITHER a 3-Way Switch OR a Blend Pot?

    Hey guys. I'm trying to put together a schematic for a 2-humbucker guitar with master volume, master tone (which coil taps the humbuckers), 3-way slector, and then a push/pull blend pot which is where my issue is.

    Here's the idea for functionality:
    1- Standard master volume/tone/3-way setup with push/pull for coil tapping. Right now the "blend" is inactive and essentially doesn't do anything.
    2- Pulling up on the blend pot takes the 3-way switch out of the equation and instead routes the pickups' hot signal through a blend pot.
    Basically this is my hair-brained idea at trying to get the "blend" ability of a Les Paul (which has it's dual master volumes) when you want it, but giving you the simplicity of a single volume/tone circuit when you don't.
    Another way of looking at it is having a preset "blend" you can reference with the pull of a pot.

    Here's what I have so far (ignore word "stacked pot" as that was a copy/paste issue. DPDT above the blend pot represents the push/pull action):
    Click image for larger version. 

Name:	BlendVs3Way.png 
Views:	123 
Size:	113.4 KB 
ID:	48933
    My concern here is the red wire with arrow tips. With the switch being in front of the blend/3-way decision I'm afraid that while in "3-way mode" the signal will walk that red wire and still be affected by the blend pot. Or conversely, while in blend-mode it might still be affected by the 3-way switch.
    Thoughts?
    Chris

    0 Not allowed! Not allowed!

  2. #2
    Member
    Join Date
    Nov 2010
    Location
    DC
    Posts
    145
    Thumbs Up/Down
    Received: 0/0
    Given: 0/0
    Rep Power
    9
    First hypothesis (hopefully I'm over-thinking this): Yes there will be interplay between the "modes" and therefore I need to cut off the interplay-connection to the mode that's not supposed to be active.
    Potential Solution?: Swap out the push/pul for a 4PDT switch where the 4 poles perform:
    1- Selecting whether the neck pickup goes to the blend or the 3-way switch
    2- Selecting whether the bridge pickup goes to the blend or the 3-way switch
    3- Connects/disconnects the wire from the blend pot to the volume pot
    4- Disconnect/connects the wire from the 3-way switch to the volume pot
    Someone please tell me this is over-thinking as I'd much prefer to push-pull...
    Best,
    Chris

    0 Not allowed! Not allowed!

  3. #3
    Member
    Join Date
    Nov 2010
    Location
    DC
    Posts
    145
    Thumbs Up/Down
    Received: 0/0
    Given: 0/0
    Rep Power
    9
    Still no thoughts here? lol
    I know there are some electronics geniuses out there.
    Chris

    0 Not allowed! Not allowed!

  4. #4
    Member
    Join Date
    Nov 2010
    Location
    DC
    Posts
    145
    Thumbs Up/Down
    Received: 0/0
    Given: 0/0
    Rep Power
    9
    Would really love it if an electronics guru could help me out and 'proof-read' my diagram.

    I think I've got it right with the modifications in post #2, but would love to know before I drill some holes in this guitar top.
    Chris

    0 Not allowed! Not allowed!

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. Replies: 0
    Last Post: 06-04-2012, 06:08 PM
  2. Blend Pot for Bass/Treble Cut (Tone Pot)
    By thehallofshields in forum Music Electronics
    Replies: 5
    Last Post: 03-24-2011, 07:45 AM
  3. Fender Champion 600 On/off toggle switch
    By Parktreeone in forum Maintenance, Troubleshooting & Repair
    Replies: 10
    Last Post: 03-05-2011, 05:53 PM
  4. Toggle Switch Brands?
    By TheTinMan in forum Build Your Amp
    Replies: 3
    Last Post: 03-04-2010, 08:28 PM
  5. mesa boogie toggle switch replacements
    By PRNDL in forum Maintenance, Troubleshooting & Repair
    Replies: 4
    Last Post: 03-08-2009, 12:05 AM

Bookmarks

Posting Permissions

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