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"Making an air coil for an old Hoyer/Framus"


https://tymguitars.com.au/blogs/blog/making-an-air-coil-for-an-old-hoyer-framus

"Making an air coil in a Gibson humbucker case using Litz wire"


I don't know if anyone has done this before: my first hand-wound not-even-prototype open-coil Litz wire guitar pickup works far better than I ever expected!

I expected to hear something, but what I’ve got sounds very much like a Jazzmaster pickup - only better. It’s clean, with little-to-no mains hum (due to the shortness of the wire). It is treblely, but not excessively so, and I can easily tone that down with a different tone cap and a metal pickup cover rather than the cheap plastic one I am using. This is amazing - big wide single-coil, glued onto the top of a plastic Gibson Humbucker cover with an Alnico magnet located in the middle of the coil (losely) and using a brass baseplate. That’s four parts - and clean.

A shot in the dark (literally) and I hit the bullseye!

Making an air coil for an old Hoyer/Framus

Anyone who frequents my blogs knows I make and rewind pickups but this one was kinda special, in that I haven't made an air coil before although I have wanted to for many years so this job just made me get my stuff sorted so I can go down another rab…
Tym Guitars Online
#Maker
in reply to tom grzyb

tom grzyb
tom grzyb
• •
I just put a multimeter on the new 400-turn coil. As expected, the resistance is very low, between 0.8 and 0.7 k-Ohm. Since the archtypical strat pickup is 5.6 K-Ohm, we are just below that - once you multiply by a factor of 7. So, it looks like 400 winds will be too little, still. I'll give it a try, but now I am betting on 500-600 winds.
in reply to tom grzyb

tom grzyb
tom grzyb
• •
I should tell you what we are measuring! 400 winds (long winds) of Litz wire of 0.05mm x 7 strands, with single layer insulation (7/44ga.)

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