Hi everyone,
I've ordered an Abraxas bridge humbucker to put into a Warmoth strat which currently has 3 vintage blonde singles. Obviously the bridge single is going and the abraxas is going in.
I've drawn a wiring diagram for a modified Suhr style circuit. First of all I'll call position 1 bridge and position 5 neck. The first difference is minor, it's that tone 2 affects both positions 1 and 2; in the original Suhr it only affects position 1. I don't like tone 1 affecting position 2 so this is why I changed that. The next difference is that there is a bridge split push/pull and a neck on push/pull. There are some resistors that are in parallel with ground so that depending on what pickup selection is chosen, the effective load is appropriate. E.g., if bridge humbucker is selected, the effective load is 250K (equivalent to two 500K pots in the circuit). And similarly for single coils, 125K (two 250 pots in circuit).
However, in position 2, I have not been able to get the effective load quite right; it's at 166K approximately. So it may be slightly brighter than what I'd want but I think this would be negligible. But if anyone can see a way to make position 2 a 125K effective load, that would be great!
P.s. this is my first time using DIYLC, so it may be a bit ugly!
Standard 5 way autosplit
Position Pickup Volume Tone Resistor in parallel to ground Total load (approx)
1 Bridge hum V1 500K T2 500K None 250K
2 Bridge slug in.p Middle V1 500K T2 500K R3 470K 166K
3 Middle V1 500K T1 250K R3 470K 125K
4 Neck in.p Middle V1 500K T1 250K R3 470K 125K
5 Neck V1 500K T1 250K R2 470K 125K
With Neck on
Position Pickup Volume Tone Resistor in parallel to ground Total load (approx)
1 Bridge hum in.p Neck V1 500K T2 500K None 250K
2 Bridge slug in.p Middle in.p Neck V1 500K T2 500K R3 470K 166K
3 Neck in.p Middle V1 500K T1 250K R3 470K 125K
4 Neck in.p Middle V1 500K T1 250K R3 470K 125K
5 Neck V1 500K T1 250K R2 470K 125K
With Bridge split
Position Pickup Volume Tone Resistor in parallel to ground Total load (approx)
1 Bridge slug V1 500K T2 500K R4 240K 125K
2 Bridge slug in.p Middle V1 500K T2 500K R3 470K 166K
3 Middle V1 500K T1 250K R3 470K 125K
4 Neck in.p Middle V1 500K T1 250K R3 470K 125K
5 Neck V1 500K T1 250K R2 470K 125K
With Neck on + Bridge split
Position Pickup Volume Tone Resistor in parallel to ground Total load (approx)
1 Bridge slug in.p Neck V1 500K T2 500K R4 240K 125K
2 Bridge slug in.p Middle in.p Neck V1 500K T2 500K R3 470K 166K
3 Neck in.p Middle V1 500K T1 250K R3 470K 125K
4 Neck in.p Middle V1 500K T1 250K R3 470K 125K
5 Neck V1 500K T1 250K R2 470K 125K
I don't think those tables will format correctly, but it shouldn't be too bad to follow.
