Warman G-rail triple coil electric guitar pickup – A very special pickup indeed. 3 coils, 6 wire output, ceramic and alnico magnets and more wiring options than even we can think of.
This is a standard humbucker sized unit that will fit in place of most humbuckers. It has two coils wound as hot rails with a strong ceramic magnet powering these that lifts the treble whilst retaining all the power, bass and mids. Each of the coils of the rail has its own individual output wires so is in effect a fully fledged twin rail humbucker in its own right.
Mounted on the same chassis is an another coil wound with 6 individual alnico magnets again with its own output wires so we’re looking at three coils and six output wires plus the shield. Please see the pictures which include the Data Sheet with the wire colours explained.
Each of the rails has a resistance of 7.2k and due to the strong magnetic field have an inductance of 4H, when wired together in series gives a combined resistance of 14.4k, which is to be expected, but the powers jumps up to 9.56H more than twice the sum of the individual coil outputs .
The alnico coil has a resistance of 6.44k and an inductance of 3.28H on its own. Now this is where things start to get interesting. Put all 3 coils wired into each other in series and the thing turns into a Monster at 20.8k and a massive output of 13.74H.
There are masses of different tones available from just this one pickup. You can see from the various frequency resonance test graphs that by using different coils and different value tone capacitors you can model the tonal output of the G-rail to a degree I doubt is possible with any other pickup on the market. All these test readings were taken using a 500k pot.
There are so many possible ways to wire this up for ultimate tonal options. You could be a bit boring and wire it a little like a strat on a 5 way switch to get one rail on its own, both rails together, middle rail on its own, middle rail plus alnico coil together or single alnico coil on its own. Or simpler still stick it in a Fat Strat bridge, use a 3 way switch and have a full on rail humbucker on its own, a rail humbucker and a sweet vintage alnico coil together, or the alnico coil on its own.
My own peronal test one is wired to produce ten individual tones from one pickup with a few 3 position on-on-on DPDT switches wired in, check our listings as we sell these hard to find switches at incredibly low prices too. You can download some wiring ideas and the pickup specs from our website warmanguitars.co.uk
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