Why don't pickups get updated like other products?

[RogerMexiko]

Re: Why don't pickups get updated like other products?

Basically, you use a solenoid (electromagnet) as the magnet in any passive (or active) wind. The rest is the same.

This produces a controllable strength magnet, which could be controlled by a rheostat (potentiometer) or a controller with USB.

Basically, you could go from A3 to ceramic (power wise) in a turn of a knob. Im unsure of the tonal effects though.

I thought that is what I drew. The AlNiCo bar (not magnetized) rough on one side polished on the other wrapped with copper wire coil wise with a rheostat controlling th voltage is a solenoid isn't it?