These Filtertron pickups are based on the specs found in the 50's originals, using 42awg formvar wire and oversized AlNiCo 5 magnets. Wound to 4.2k in the neck position and 4.8k in the bridge, they are bright, clear, sparkly and articulate.
Available with chrome covers, as direct body mount or humbucker mount (also known as "English" mount), these are a direct drop-in replacement for stock Filtertron pickups.
If you are fitting these to a guitar with the three screw mounting, as found on most Electromatics, you will need the mounting adaptor plates. More information at the link below:
As standard these pickups are lighty wax potted to allow a more open and detailed sound, but reduce the chances of any unwanted microphonic feedback.