The Schecter-F400 loaded pickguards normally came with Schecter’s F500T pick-ups. The ‘T’ stands for tapped. So, what is meant with this, what is a tapped pick-up?
A normal Strat pick-up consists of six individual magnet pole pieces wrapped by a coil of thin wire. The original Fender design had about 8,000 turns (varying to some extent, the vintage ’54 pick-up was specified to 8,350, while a 1978 Strat pick-up had about 7,600 turns). This will result in a coil of about 6 kOhms. Compared to a humbucker like Gibson’s PAF the Strat sound is rather thin and weak with lots of treble, which is not ideal to get a heavy distortion from most vintage amps. Adding more turns will result in a louder and at the same time fuller sound (more midrange, less harsh treble). This was the reason why pick-ups like the DiMarzio FS-1 or SDS-1 were invented in the early 70ies. They had a coil with almost twice as many turns, which means about 12 – 13 kOhms. Great for distortion, and a great fat and warm sound for clean stuff. However, you cannot recreate the crisp original Strat sound with these.
The solution that combines the best of both worlds is the tapped pick-up. David Schecter was probably not the person who invented these, or used them for the first time, but probably the one who made them popular in the late 70ies. The idea of a tapped pick-up is to make a coil with the standard number of turns first. Next a second coil is added around the first one, wired in series with the first. Consequently a tapped pick-up has three cables: ground, normal coil output, and the output of both coils in series (which is equal to one coil with the double number of turns). Of course you need some switching system to select the normal or double coil, ideally individually for each pick-up. Here the three mini toggle switches of the Schecter Dream Machines came in. Each of them has three positions: up is the first coil for a standard Strat sound, in the middle position the pick-up is off, and in the down position you have the full coil. As you can combine the three pick-ups in any coil position, you will get 27 individual sounds this way.
For my loaded Schecter-style pickguards, I use handwound pick-ups by Germany’s pick-up specialist Harry Häussel that are based on the F500T design. Check them out in this site’s shop.