Making a Frankenpup - ideas?

DrNewcenstein

He Did the Monster Mash
Forever the tinkerer (the Mad Scientist name and all), I'm considering building a Frankenstein (or Newcenstein, as it were, not the EVH pickup...unless...).

The donors I have to choose from are:

-2 Duncan Designed SC-101 singles (both same wind/polarity, apparently) (Alnico poles) 7.01K

-1 import Rail-type single-spaced humbucker (not sure who made it, but the USA counterpart to the guitar it came out of had Armstrong Rails, which had the same wire color scheme but the import models use what appears to be a metallic/candy green wire) (unknown magnet - looks like a bar across the bottom, possibly Alnico? - looks like steel) 14.76K full / 7.39K split

-What appears to be a Jackson J-150 single with a ceramic bar on the bottom (bluish/grey mottled color). I appear to have killed this one. I get no reading across the solder points.

-A JB that appears to have some sort of unspecified internal issue (sold it on Ebay a while back, but had to refund when the buyer said it was behaving oddly - it worked fine when I took it out, but then I never liked the JB to begin with so it coulda been defective/damaged and I didn't know it) 16.71K full

-A pair of Jackson J200 stacked humbuckers (conveniently encased in epoxy which will require major surgery - yum) 11.5K

-Various import humbuckers, including an "MMK 45"-stamped jobby (these can be hit or miss in my experience) (magnets unknown as of yet). The MMK 45 is 11.68K (2 conductor, allens on both coils) and the unmarked import is 8.9K 2-conductor (under the chrome cover there's white bobbins wrapped in red and yellow tape, with a bar mag of some type between the plates they're on, and the slugs are really loose - the bar mag is dark grey and smooth - Alnico? Ceramic?)

-An EMG Select H-S-S set that I robbed of the mounting tabs some time ago - readings unknown as of yet

-An EMG HZ (H3, I think, maybe a 2, hafta look again)

-a 59N (would rather not, but if I can get something sweet...)

-A Hot Rails I appear to have killed (no reading on the wires or bottom plate solder points)

-A Sustainiac single-coil driver (hmmmm)

-A dead Duncan single with a 1BX sticker (SSL-1? Black enamel coil wire?)




First off, I've never done pickup mods, so I have no idea what will "work" and what will be a lot of work only to end up with the same thing I started off with (i.e. swap one coil of the JB for the SC101 coil and end up with a JB).

Second, is there any way to even vaguely predict any such results, even if one must assume a given magnet is of a given type (i.e. assume the SC101 uses A2 poles + the Rail assumed to be using an A2, mounted on a humbucker baseplate and the coils wired together in Series (or Parallel?) = ?-type of tone)

Or am I jumping into the way-too-deep end of the pool here?
 
Re: Making a Frankenpup - ideas?

Well, managed to kill 2 of the SC101s. Man, them coil wires are tiny. And fragile, too :lol:

The Hot Rails is officially dead. Opened the housing and discovered that somewhere along the line the coil wires at the corners (pc board, style base) had all come loose, as well as all the grounds on the sides.
It died a while back when I was installing it into a guitar - got it all wired up and then poof. Funny.
 
Re: Making a Frankenpup - ideas?

For future reference, when combining two 2-conductor singles into one pickup, should I connect the grounds of each coil for Series or one coil ground to one coil hot? The SC101s have a red, white, and bare. The red was designated as ground and paired with the bare by default.


I already figured out that flipping all the alnico rods of one coil takes care of the magnetic polarity issue.

Also, aren't humbucker coils wound in opposite directions of each other?
Would I experience phase issues if I simply flipped one coil's rods but the coils were wound the same direction?
 
Re: Making a Frankenpup - ideas?

are we going for a specific sound here or are we just breaking stuff and putting it back together? :smokin:
 
Re: Making a Frankenpup - ideas?

Whichever comes first. Going for a specific sound would involve more detail than is necessary (i.e. personal opinion about which coil to use, etc) whereas "let's see what happens when..." leaves it wide open to tonal discovery but includes the necessary technical info, such as how to deal with soldering the coil wires.
 
Re: Making a Frankenpup - ideas?

Ok, finished my first pickup mod - turning 2 singles into a humbucker.

Unfortunately since I expected it to end in tragedy, I didn't take progress pics :lol:

Anyhoo, after toasting the aforementioned Duncan Designed SC101s, I found a pair of mid-90s Jackson singles in another parts box. They're the old style without the tabs, so I didn't have to cut the bottom of the bobbin off.

I first flipped all the magnets of one coil so I'd have a South and a North coil.

Since only one pickup still had a wire on it, I had to figure out which of the other 2 solder points on the bottom were for ground and finish.
Found those easy enough, and soldered the 2 grounds together and the 2 finishes, as well as jumped the 2 hots.

This yielded half the resistance as just one pickup (about 6.5K originally, but now they were reading 3.7K paired).

I then swapped the starts and finishes so the Start of one coil met the Finish of the other in an X pattern. Was this the correct way to do it? Not just outer coil Start to inner coil Finish, but also outer coil Finish to inner coil Start.

Anyway, once they were wired and reading about 9.3K I took an old import humbucker apart for the baseplate and taped the coils together and onto the baseplate.


I mounted it in a mahogany/mahogany/maple top necktrhough and plugged in, expecting tradegy.


To my surprise, it rocks! Sounds great on cleans, low bluesy gains, AC/DC gains, all the way up to a Master of Puppets patch I made.

I paired it with a 59n and the 59 definitely overpowers it, so I tapped the slugs of the bridge only to find that only one of them appears to be putting out, yet there's zero hum (these weren't stacks, they were vintage-style singles). The other does get some sound when scratching the poles and bobbin, but I suspect that's merely being picked up by the other coil, as that one is as loud as the Duncan.


I'm thinking that I should only have wired one coil's start to the other's finish? But then what to do with the other finish?

I'm definitely getting great sound with no hum, but it does appear only one coil puts out (I tested them repeatedly during the build to make sure I hadn't broken them, so I know it was working when I installed it).

Right now it's a 2-conductor. I suppose I could/should set it up as 4-conductor. Then I can wire it in Series/Parallel as well as Splits/individual coils.
 
Re: Making a Frankenpup - ideas?

sounds cool. btw you do wire an end to a start; the start goes to ground and the end goes to the hot output. or the other way around, depending on which phase you want.

now whatcha gonna make next:naughty:
 
Re: Making a Frankenpup - ideas?

i'm thinking a 59n slug/JB screw hybrid for the neck
you could have a 59n screw/JB slug hybrid for another bridge?
:deal:
 
Re: Making a Frankenpup - ideas?

Dr - I could do that. I guess. Maybe. Kinda. :lol: I like the JB in the neck, so I could do the 59n Screw/JB Slug as a neck pickup (since the screws and logo will be in the right place)

Super - Thanks. But do I just wire say North coil Start to South coil Finish or do I wire North Start to South finish AND South Start to North Finish?
Probably won't matter as I'm gonna do it up as a 4-conductor. This particular guitar has a 6-way rotary knob, it'd be a shame to just leave it set up for 2-hum op.
 
Re: Making a Frankenpup - ideas?

Updated donor list:

(all fully functional)
-3 JBs (1 Zebra B/C)
-2 59n (1 Reverse Zebra C/B)
-1 Dirty Fingers bridge pickup (original, from an '83 Explorer - might have the matching neck pickup - hafta dig around)
-4 Tone Zones
-4 Evo necks
-1 TB-11 (White)
-1 SH-11
-1 original Duncan Holdsworth (yeah, butcher the most expensive pickup I got :lol: )
-1 JBJr
-3 Custom Shop Lil/Jrs - Custom, Jazz, Distortion
-1 Anderson H2+
-1 DDJ
-Armstrong-style Rail
-Jackson JH-2 humbucker (not sure of the sound - meters at 12.76K - bridge model).

If the 59n/JB has been done, I'm not too concerned with doing it myself. How about a TZ/JB? Evo/59? DD/TZ? CC/59n? C5/Evo?
Kramer already did Quad-Rails - how about a JB-Rail? One JB coil with the Armstrong-copy for the other coil?

Maybe a Lil'Jazzer+59n?

Or everyone's favorite combo on one plate - Jazz(Jr) inner+JB outer?


How feasible is it to have one coil with Alnico slugs and the other with a ceramic bar under the steel slugs (not Alnico)? How about an Alnico bar under the one instead of ceramic with Alnico poles in the other?

What tonality would I get if I took the one I've already made and flipped the odd magnets over on one coil and the even magnets on the other? N-S-N-S-N-S on one and S-N-S-N-S-N on the other? Or North Basses and South Trebles (3x3 on each coil)?
 
Re: Making a Frankenpup - ideas?

Please don´t mod the Dirty Fingers, sell it to me, I still need one to bring my V back to stock :beerchug:
 
Re: Making a Frankenpup - ideas?

It's going to need potting I think. Haven't had it in a guitar in years (you remember the Zakksplorer?) but I do recall it feeding back when I tried to use it live.

Anyhoo, shoot me a PM and let's get this sheep shorn.
 
Re: Making a Frankenpup - ideas?

make a bridge pickup out of the JB and sh-11, both slug coils, with an alnico 8, with the JB coil in the "slug" spot, and the sh-11 in the "screw" spot towards the bridge. take a screw coil from a '59n and combine it with the other SH-11 screw coil with an a3 magnet, and stick it in the neck. then, wire it up for coil swap:fingersx:. now that'd be an interesting combo:scratchch
 
Re: Making a Frankenpup - ideas?

Hmmm. Don't have any other mags on hand. I don't even know what's in most of the pickups I have :lol:

I know the DD and CC are ceramic and the JB has an A2 and the C5 has an A5 - that's it.
 
Re: Making a Frankenpup - ideas?

wait.... all three of your JBs are a2? that doesn't sound right, they're supposed to be a5. the holdsworth should be a double screw a2 JB, and the DDj has a thicker ceramic magnet than is standard.

either way aftermarket magnets are available at http://www.wymoreguitars.com.

the 7% off coupon code is sdforum;)

i strongly suggest picking up a few a3 and a8 magnets, those are great to swap into a2 and a5 pickups, respectively.
 
Re: Making a Frankenpup - ideas?

Ah, well, I thought I knew what mags I had :lol:

So the JB has an A5, ok. Thought it was mentioned before they were A2s. Anyway....

I think I'll stick to using what I have on-hand for the moment - see if the "urge to merge" sticks or not. It could be a passing phase. Never know with me :lol:
 
Re: Making a Frankenpup - ideas?

Ok, how do I have this wired? Series? Or did I do something "wrong"?

mutthum.jpg


The white wires off the the left are where the one original white/hot was. The red wires are on what appear to be the ground/bare wires (got no reading on the meter when touching those points and the white point).

When I started this, the only wire was a white one on one pickup, so I'm not sure what the other points had.

As I said before I get sound, and the pickup reads 9K, so I've got something right, but when I tap or scratch the poles and bobbins, I don't get nearly as much sound on one as I do the other. Just wondered if maybe only one coil is actually hot. Surely not since I'm getting twice the reading of just one pickup.
 
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Re: Making a Frankenpup - ideas?

try grounding the white end on the bottom coil to the red wires. in the 4 con. duncan diagrams, it's always got one hot, two connected(a start and finish) and the finish of one of the coils grounded along with the baseplate.
 
Re: Making a Frankenpup - ideas?

Like this?

mutthum2.jpg


Then run the red out like before?

What about the spare connection point?
 
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