No I decided to keep it the way it is. Just one pickup.
I don't use a transformer in this bass.
The rotary switch does exactly the same as the three way switch on a Triumph.
I use the three way rotary switch to choose coiltaps (the different leads coming out of the pickup)
The signal that comes out of the bass is a lo-z signal.
I use a Shure A95U impedance transformer on the end of my cable.
Aha, I thought you kept the transformer from the JC bass. It does work. I have one spare JC pickup with transformer and one Triumph pickup without transformer. I connected the Triumph pickup to the JC 3-way transformer with crocodile clips and just held it over the strings on one of my basses. Obviously I couldn't play, but I could hear that it worked and that it would potentially make a very versatile bass. I am interested in doing that on a future project. You would have the choice between three different positions on the transformer in combination with the 3-way tone/coil tap selector of the Triumph pickup.
The next step would be to have two 3-way tone selectors, one for each pickup. That would make for so many choices I can't even count them. Maybe that's even going a bit too far. But I do think it would be interesting to hear how the Triumph pickup would sound with, for instance, the transformer set at 500 ohm and the tone selector at 1 or 2. Or the transformer set at 50 ohm and the tone selector at 3. And how would the transformer set at 500 ohm and the tone selector at 3 sound like? Perhaps something like a EB-3/EB-2 with a Dimarzio Model One. I don't know but I would sure like to find out.
On my Triumph bass I never use the tone selector at the first position. And on my JC bass I never use the transformer at 50 ohm. Like you, I am still undecided (and I am waiting for a second Triumph pup from David
)
A while ago I bought a complete set of guitar pickups plus wiring and controls coming from a Les Paul Professional guitar. I did think about it to put them in another JCS (that I have yet to buy).
But I might go build me another short scale Les Paul Bass to put them in. Still undecided...
Do keep posting your thoughts on this. I have similar decisions to make. I might buy me another JC bass to use with my Triumph pickups. And then maybe use the spare JC pickups in a short scale LP or EB-3 bass. Secondhand JC basses are really cheap nowadays. You can get one with hardcase for around 350 euro.
I know you are not fond of the JC pickup. So if by any chance your projects leaves you with a spare one (with or without transformer but preferably with) I could perhaps relieve you of it.