July 18th, 2012, 05:14 AM
I've just about finished putting together a Keef "Micawber" clone which I'm pretty happy with. The one piece of the jigsaw that's missing is the wiring. I've got a Seymour Duncan 59 neck pickup and a Wilkinson vintage bridge. I've followed the Seymour Duncan Broadcaster wiring diagram as far as possible, with a 15k resistor on the pickup switch, as well as a .022 cap between the pickup selector and the volume control. My question is about the blend control. Such controls as I've seen for sale have dual wiring ie so that each pickup can be brought in/out. The Seymour Duncan diagram shows a blend control but with just 3 tags of which just 2 are connected from the volume pot. I'm obviously missing something here. What is it please?
July 18th, 2012, 06:27 AM
I'm not sure if I'm following you completely or not, but I think you may be thinking that the blend feature on the Broadcaster wiring works the same way as the "pan" control (like a lot of basses have that don't have any selector switch).
The old Broadcaster/Nocaster wiring gives you the neck pup in the middle selector position, the bridge pup with the switch all the way back, and the blend control adds the neck pickup into the bridge only when switched to that position. You'll have only the bridge pickup when turned one way, and the pot will slowly blend the neck pickup in until it's fully mixed (like a modern Telecaster's middle switch position) when the pot is turned fully in the other direction. It doesn't start out with one pickup at either extreme and both pickups fully on in the middle of the sweep.
July 20th, 2012, 04:09 PM
Yes, I'm clear about what the settings are, but it's the use of the word "blend" for what would normally be the tone pot, in the Seymour Duncan wiring that doesn't help. I assume, therefore, that a normal tone control is used? If that's the case then fine, but why couldn't the normally very clear Seymour Duncan diagrams provide a bit of clarification?