Vintage Reissue Higains anyone?

rickcrazy · Post by **rickcrazy** » Fri Mar 30, 2007 2:30 pm

P.S. two: can you guess what those bobbins were fashioned from?...

loverickbass · Post by **loverickbass** » Fri Mar 30, 2007 2:46 pm

Looks like from The Byrds "Mr. Tambourine Man" vinyl LP. I see a few grooves near the pole pieces. I need to stick a needle to it and make sure! He He...

rickcrazy · Post by **rickcrazy** » Fri Mar 30, 2007 11:31 pm

Well, bingo! Not from a Byrds long-player though.

loverickbass · Post by **loverickbass** » Sat Mar 31, 2007 3:10 am

I'm just messin' with you Sergio. You already told me earlier what you made them from.

BTW, how hot did you wind them? I'm guessing less than 7.4K.

rickcrazy · Post by **rickcrazy** » Sat Mar 31, 2007 1:38 pm

That's right. Around 6.8 K.

loverickbass · Post by **loverickbass** » Sat Mar 31, 2007 1:40 pm

Thank You Sergio.

heinpete · Post by **heinpete** » Tue Apr 10, 2007 9:05 pm

Here is a close up of a 1970 high gain from Elys' 4001:

loverickbass · Post by **loverickbass** » Wed Apr 11, 2007 2:19 am

Cool! Looks like it's bobbin is cardboard or fiberboard. Reminds me of the bottoms of vintage fisher price toys.

elysrand · Post by **elysrand** » Wed Apr 11, 2007 3:20 am

Wow, Pete, that's a gorgeous photo you took! You have both a very good camera, and a true artist's eye for composition

Rickenbacker 21-fretter courtesy of John Hall and Electro...

elysrand · Post by **elysrand** » Wed Apr 11, 2007 3:22 am

Sérgio, is that the late-sixties "phenolic" material in the hi-gain bobbin? It does not look like "record vinyl" in this photo.

johnhall · Post by **johnhall** » Wed Apr 11, 2007 4:49 am

That's G-10 mil spec glass filled epoxy printed circuit board material- just about indestructible.

G10 Spec Sheet

rickcrazy · Post by **rickcrazy** » Wed Apr 11, 2007 10:51 am

Hey, thanks, John. "Just about indestructible". I'll say!
Elys, the treble pickup originally on my November '70 21 fretter looked exactly like that. Currently it's safely tucked away in my "Rick parts drawer".

elysrand · Post by **elysrand** » Wed Apr 11, 2007 12:39 pm

We used this single-layer glass-filled epoxy for RF circuit boards in VHF radios for years. Only a two-sided circuit board, so you could do plated-through bridges front-to-back easily on the wave-soldering machine. John is right, this stuff takes a lot of soldering iron abuse, much stronger than plain old brown phenolic perf board.