Pookus Posted March 30, 2010 Share Posted March 30, 2010 Hi, I am adding a second pick up to an EBO bass, but just want to keep the controls simple - using existing volume and tone pots - just adding a 3 way selector for neck / both / bridge. Please can any electrical types help me with a diagram. Thanks. Quote Link to comment Share on other sites More sharing options...
Bottle Posted March 30, 2010 Share Posted March 30, 2010 This might do the job (see attached - just a quick pen 'n' ink sketch). Does depend on how well the pickups are matched - if one has a significantly different impedance, you may have to put a blend pot between the two pickups to balance the volume. Are both pickups single-coil? Also, you'll need a three-way switch - on/on/on with a centre detent. HTH, Ian Quote Link to comment Share on other sites More sharing options...
Pookus Posted March 30, 2010 Author Share Posted March 30, 2010 (edited) [quote name='Bottle' post='790413' date='Mar 30 2010, 11:14 AM']This might do the job (see attached - just a quick pen 'n' ink sketch). Does depend on how well the pickups are matched - if one has a significantly different impedance, you may have to put a blend pot between the two pickups to balance the volume. Are both pickups single-coil? Also, you'll need a three-way switch - on/on/on with a centre detent. HTH, Ian[/quote] Wow, thanks Ian. Just what I needed. Both pick ups are the standard Sidewinder Humbucker on an EB0. I've got a multimeter, maybe I can check the impedance of the pick ups with that? Cheers. Edited March 30, 2010 by Pookus Quote Link to comment Share on other sites More sharing options...
Bottle Posted March 31, 2010 Share Posted March 31, 2010 [quote name='Pookus' post='790948' date='Mar 30 2010, 07:10 PM']Wow, thanks Ian. Just what I needed.[/quote] No worries. Hope it works for you. [quote]Both pick ups are the standard Sidewinder Humbucker on an EB0.[/quote] OK - I noticed the EB0 doesn't have a coil-tap option, so I'm going out on a limb here, guessing that the there's only the hot wire and the ground brought out of the pickup (piccies would help!). If it's four-wires (plus ground), or four-wires-with-two-soldered-together, then you have an option for including a coil-tap (at a later date if you wish). Had a quick Google for the pickup wiring but nothing popped up immediately. [quote]I've got a multimeter, maybe I can check the impedance of the pick ups with that? Cheers. [/quote] Yep, that'll work. As long as they're in the same ballpark - when they're in parallel the volume should be balanced-ish HTH, Ian Quote Link to comment Share on other sites More sharing options...
nollaig Posted June 2, 2010 Share Posted June 2, 2010 [quote name='Bottle' post='791634' date='Mar 31 2010, 10:32 AM']No worries. Hope it works for you. OK - I noticed the EB0 doesn't have a coil-tap option, so I'm going out on a limb here, guessing that the there's only the hot wire and the ground brought out of the pickup (piccies would help!). If it's four-wires (plus ground), or four-wires-with-two-soldered-together, then you have an option for including a coil-tap (at a later date if you wish). Had a quick Google for the pickup wiring but nothing popped up immediately. Yep, that'll work. As long as they're in the same ballpark - when they're in parallel the volume should be balanced-ish HTH, Ian[/quote] Ian I'm modding a late 80s/early 90s Epiphone "by Gibson" Rock Bass (Jazz pickup configuration) and I wonder if you could help. What I'm attempting is the following series 2 single coil pickups > DPDT "on-on-on" switch > 1x master volume > input (bypassing tone entirely). Pickups are stock EMG Select (passive). Your diagram appears to be exactly what I'm looking for - but i'll just go from the volume pot straight to the output and miss out the tone pot junction. I wonder if you could elaborate a bit further on your diagram - specifically where/to what do you ground the DPDT switch - do both ground wires go straight to the volume pot? Also in your schematic the bottom right and top left terminals of the DPDT which are tagged as HOT TO VOL/TONE are linked after the switch. How is this done? Is it simply a case of soldering both wires to the input leg of the volume pot or do they need to join before this? Thanks for your time, Noel Quote Link to comment Share on other sites More sharing options...
7string Posted June 7, 2010 Share Posted June 7, 2010 The [url="http://www.guitarelectronics.com"]Guitar Electronics[/url] site has a load of wiring diagrams and options. Well worth a look. Quote Link to comment Share on other sites More sharing options...
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