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Interesting pickup I stumbled across

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  • Interesting pickup I stumbled across

    I'm sure this isn't a new thing to the guys who've been around here a bit, but I hadn't seen one of these before. Have a few questions if anyone can answer 'em. Mostly just interested in anything anyone knows about these pickups.

    I'm an amateur guitar builder, (which is what got me into pickup winding recently) I do a few repairs for local guys, and a dude brought me a beater, cheap as heck LP copy someone left in his basement of a house he moved into. It was a "Pan" brand guitar, with a headstock that was the same shape as a Gibson's, if I remember correctly. I don't know the details of the whole "lawsuit" era of copies, but I feel like that dates it a bit. It had an top formed by bent plywood over a center piece of wood. The pickup rings where stamped steel, fairly rusted, with flaking black paint. The TOM had nylon saddles. (Well, the five that were left.)

    It was never claimed despite attempts to find it's owner, so he claimed it as his own. Nothing worked on it, so I got it going for him again. The bridge pickup needed a new lead, and the neck pickup was shot - we put a pickup he had kicking around in there, and I hung onto the neck pickup for him, told him if I ever started winding, I'd try and get it working for him, or he could pick it up any time.

    I fell in love with the bridge pickup, it sounded like a cross between a firebird style minibucker, and that tone I always associate with Ricks - Really chimey and jangly. But it dirtied up pretty well. Maybe a little lacking on the bottom end for some guys, but just had a great snappy tone without being brittle.

    The neck pickup ended up having a shorted coil - the start of the coil came out under the coil, and the lead wire was attached outside the coil and under the tape - I think the sharp, rusty edges of the metal pickup may have worked it loose.

    The coils on the bridge p'up where wound to around 3K each if my memory serves me right (need to dig out my notes) the neck was around 3.6 and 4 They seem machine wound, but there was a definite lump around the bottom of the thing on one. The other seems to have been slightly off center - the lump is on the bottom on one side, and the top on the other.

    They seem to be potted after they where taped, (with what appears to be masking tape) but the potting didn't penetrate very deeply - through the few layers of tape, and into the outside of the windings mostly, although it did seep into the bottom of the coil more.

    No signs of them ever having had covers. The coils seemed to be potted in something like lacquer. It's quite brittle. But the pickup itself seems to be potted, or assembled, rather; in something else - Maybe lacquer or an adhesive? It seemed to be the only thing holding the whole thing together. It's got a weird brown color, which may be from all the bits that are rusting, but what looks like rust mostly scrapes away as the residue from whatever that compound that is. It's not that brown color on the coils at all, which may mean they were potted with one thing, and then the pickup assembled in something else. It's everywhere in a fashion that implies potting, but it must be an adhesive.

    Measured to be 42 gauge with a thin insulation. I'm not sure the insulation, it seemed to be enamel, but I'm not good at telling these things. What are the signs? Tried to rewind with the used wire after peeling the bobbin, but that didn't work. I feel bad doing so much work on this, but this pickup was going to end up in the dumpster, and nothing I've done can be redone better in the future.

    Some other things:

    Nylon bobbins - these where really thin, and somewhat flared to begin with. The coil I had to rewind (I managed to get the coil unwrapped without breaking it, but that inner wire that had become detached from the lead broke too short for me to re-solder to - I managed to measure a 3.6 resistance, however.) was pretty difficult for someone with my limited skills to do without it flaring more. Both bobbins are identical. They appear to have holes for feeding the wire through at the ends, but these weren't used, and were actually at the top of the pickup, where they wouldn't have done much good. The ends of the bobbin are square, rather than rounded like standard bucker bobbins. The part of the bobbin the wire gets winded on is a bit wider than a standard one. (All pictures of parts from this pickup next to other stuff, the other stuff is from a stewmac humbucker kit)

    The screws are slug sized at the top. The keeper bar is rounded, large and flat, and the slugs thread into it. THe holes in the base are oversized, and the slugs do not thread into, nor make contact. The keeper is attached to the base only by whatever adhesive or potting stuff is all over the underside of the pickup.

    The slug side is made of two bars, shaped like combs. They are non-conducting with each other when removed from the pickup.

    The magnet is smaller. The pull seems about A5ish, but I can't tell for certain having no gear to test this.

    Questions:

    So I've got the coil rewound, but I'm not sure the best way to attach all these parts again? Should I hold them together with rubber bands and then pot the whole assembly? The way that brown stuff seeps out the bottom holes, it almost looks like something was poured in the top, and that was really all that was holding it together. Should I just use some sort of heavy adhesive?

    What is that brown stuff apt to be, anyway?

    I really liked the sound of the bridge pickup, and would love to get that sound again. If I wanted to build something close for myself, what would be the best way to get that tone? If I replaced the weird slug/screw thing with slugs, and made a similar set of notched blades, And tried to wind to similar specs, would that get me halfway there?

    Anyone know anything about these pickups, or even heard of Pan guitars? I can't find anything.

    Sorry this is so long and rambly. Just curious if anyone knows anything about these. They were cool and weird and actually sounded pretty awesome.
    Attached Files

  • #2
    I've got some bobbins that are almost identical to those that were in single coils from some plywood Italian guitar from the 60's. Frankly they sounded like crap stock, and I never bothered to rewind them since I haven't gotten around to learning how to wind yet, but one of these days they'll become an experiment. They would probably sound pretty good as a humbucker as you noticed. Sorry I can't provide any more info about them.

    Greg

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    • #3
      That brown stuff is probably contact cement.......

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      • #4
        These are Maxon pickups. The bobin shape, slug bar and pole screws are identical to a Maxon pickup I have here. That one was pulled from a Emperador LP with the same type of bent plywood top and a bolt on neck. Way before I started to wind my own pickups I ripped the bridge pickup out and sold it. I put in a SD Pearly Gates, an early one from mid 80's. That guitar is a killer with that pickup. So recently I decided to pull out the crappy sounding original neck pickup (the Maxon) and put in a SD 57 that was left over from some repair job. And that Maxon pickup is identical to your. That pickup was muddy, boomy without treble and bass. But contrary to yours it had a cover.

        Maxon was a Japanese company that made the first Ibanez stompboxes if I'm not miss-informed.

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        • #5
          That pickup did have a cover at one time. You can just make out the solder on the baseplate. My guess is that someone at some point wanted uncovered pickups and discovered the cover holds everything together, so they used contact cement rather than put the cover back on.
          www.tonefordays.com

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          • #6
            I had a late 60's/early 70's Sekova LP Custom copy and it had those exact same Maxon pickups. I thought it had a nice tone.

            Peter, yes Maxon made Ibanez stompboxes like the infamous Tube Screamer, and in fact they still sell their own versions of the originals.

            Pan guitars were made by Aria.
            It would be possible to describe everything scientifically, but it would make no sense; it would be without meaning, as if you described a Beethoven symphony as a variation of wave pressure. — Albert Einstein


            http://coneyislandguitars.com
            www.soundcloud.com/davidravenmoon

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            • #7
              Yeah Maxon,
              you find those bobbins on old Ibanez guitars.Had a a set of Maxon SG Bass pickups for rewind it had the same rectangular bobbins.
              cheers
              david

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              • #8
                They also look like the pickups in the Univox Hi-Flyers.

                My Sekovia had covers. I removed them when that was the thing to do. There wasn't anything holding the bobbins is so I remember I used to be able to flip the bobbins over and make the pickups out of phase! My pickups also had that brown contact cement.

                I still had them until recently when a box of parts, including parts from one of my '74 Ric basses got lost when we moved.
                It would be possible to describe everything scientifically, but it would make no sense; it would be without meaning, as if you described a Beethoven symphony as a variation of wave pressure. — Albert Einstein


                http://coneyislandguitars.com
                www.soundcloud.com/davidravenmoon

                Comment


                • #9
                  I suspected they had covers at one point, and if you folks say they did, that's good enough for me. What appears to be solder traces on the back plate in my bad photo is just places where the brown stuff has been scraped away - there's really no solder on that back cover, but that doesn't mean anything.

                  The back plate is really thick brass that's starting to green in a few spots on the inside - I wouldn't be surprised if the cover it once had was the same heavy brass contributing to very different tones I'm hearing compared to what others are saying.

                  I've rewound the broken coil, I'll wire it up and see what it sounds like. Have to contact the guy with the guitar and see what he wants to do with it. I think he may just be happy with the SD we put in there, but he gets first dibs on this before I play with it some more.

                  Thanks for all the info, guys!

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                  • #10
                    It's been a very long time, but I don't think the covers were soldered on. I kind of remember just prying them off. I think they were glued. The covers seemed pretty normal. I don't know if they were brass, but they weren't very thick.

                    I seem to recall that they sounded brighter and louder with no covers.
                    It would be possible to describe everything scientifically, but it would make no sense; it would be without meaning, as if you described a Beethoven symphony as a variation of wave pressure. — Albert Einstein


                    http://coneyislandguitars.com
                    www.soundcloud.com/davidravenmoon

                    Comment

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