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Messages - SGD Lutherie

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106
Gibson Basses / Re: Nevermind...
« on: October 03, 2011, 05:09:09 AM »
Errr... David, that's where most of the discussion in this thread is about. We all think that is odd.

Ah I see!  I think a lot of what Gibson does these days is odd, especially when it comes to basses!

Case in point, look at the neck pickup on the SG bass. What the heck where they thinking? They took two mini humbucker coils, and then made fake pole pieces mounted in a chunk of aluminum. This places the coils too far from the strings, because they out the T shaped blades in upside-down. Then they mounted the whole thing on a brass baseplate, and that and the aluminum kill off all the high end.

It would have been a simple thing to have made an updated sidewinder like the original, but they could have wound it to be clearer, if that was their intention.

107
Welcome, David.

Just curious, besides eliminating string alignment issues, do you think there are other reasons that make blade poles better?

Sorry for the long delay... I wasn't getting notification when there were replies...

Round poles often form hot spots under strings. if you use strong magnets, you can get a lot of string pull and warbling. Blades tend to spread out the field more evenly, and you can use a very thin blade, say like 1/16" of an inch. If you used a pole that small (like on the old Ripper pickups) you will quickly bend the string away from the pole.

Leo Fender had a good idea when he started using a pole on either side of the string. I started with that arrangement on my pickups, and quickly went to blades, and as you said which also eliminate string alignment issues, which is important when you make replacement pickups.

108
Gibson Basses / Re: Nevermind...
« on: October 02, 2011, 09:26:58 PM »
Why does this bass have (Fender) Jazz bass pickups on it?   ???  No one finds that odd? Gibson couldn't even make some RD pickup repros?

109
Gibson Basses / Re: Chrome Humbuckers for LP carcasses
« on: October 02, 2011, 09:10:21 PM »
The HOG bought up some Lp basses with no hardware and now they want to put hardware on them to sell. Any sources for Humbucking size pickups ? The only think I can think of is Fralin, and I don't know if they are making them anymore.

I also make them.

http://sgd-lutherie.com/pages/pickups.html

I make both the regular guitar size and the mini humbuckers like on the EB-3s.


110
IMHO Mister Rossmeisl is one of the biggest unsung heroes. He designed an awful lot Fenders and Ricks.

I agree! Vert talented man.

However, the Fender Coronado series was not a favorite of mine. But then I'm not a fan of those types of 335 looking semi hollow instruments. I did own a Gisbon EB-2D once though.

111
for the difference in price, one should be able to get a fretboard made. i just bought a nice 25" NOS scale Rosewood fretboard, white binding with end dressed frets for 49$ on the bay.

The neck needs final shaping and sanding, but it wouldn't take too much work.  You can get a slotted an radiused fingerboard from lmii.com.




112
Here's the same neck for $39.99!

I bought several items from this seller, including one of these necks, and got them right away.

The neck is from a 1981 long scale LP bass.

http://cgi.ebay.com/Vintage-Gibson-NOS-Maple-EB-Triumph-Bass-Neck-/250864044692?pt=Guitar_Accessories&hash=item3a68a98a94

113
Rickenbacker Basses / Re: Hipshot Ric bridge
« on: August 04, 2011, 07:47:02 AM »
Thats what Routers are for  ;) ;D





The Badass I was made for Gibson basses, which is why it's so tall. The Badass II was made for Fenders, so you don't have to recess the bass. It sits right on top.

[edit] I just read why you used it

114
Rickenbacker Basses / Re: Hipshot Ric bridge
« on: August 04, 2011, 07:44:14 AM »
Yeah, you'd have to rout an additional space for the Badass I bridge on the Ric as well.  Geddy got a badass tone on Farewell To Kings though.

I used to use the Badass II bridges on my Rics, which don't require routing, but it leaves a big hole where the Ric bridge was recessed. Geddy put a plastic ring around the bridge to hide it. I inlayed maple in mine.  Later I switched the Schaller roller bridge.

Rics have no neck angle, so it's hard to get a bridge where the strings don't rattle on the saddles.

115
Does this count?

http://www.vintageguitar.com/3399/rickenbacker-electro-bass/

George Beauchamp started Rickenbacker, or actually Electro-String. Adolph Rickenbacher just made parts for him in the beginning, especially for the National resonator guitars. Then they went into business together as Ro-Pat-In Corporation. They changed the name to Rickenbacker because it was a popular name because of World War I flying ace Eddie Rickenbacker. It was also easier to  pronounce than "Beauchamp".  Beauchamp designed the instruments along with Paul Barth.

But the man who designed the 4000 series bass, as well as their other instruments was Roger Rossmeisl.  ;D

116
Bill's Shop: Projects, Mods & Repairs / Re: Low Z bass pickups
« on: June 22, 2011, 11:30:40 AM »
Thanks for the welcome Rob! I'm not sure how I missed this forum.

I've wanted a Triumph bass and LP Recording guitar since they were first introduced back in the day. I've always ended up with lots of knobs and switches on my guitars, so I guess that appealed to me! I remember when you couldn't give them away, but now they are getting pricy.

The first pickups I tried winding back in the late 70s were low-Z, as I was trying to get that Alembic tone.  More recently when I decided to go into the pickup making business I was winding low Z pickups very similar to the original LP Signature pickups, but using an external preamp instead of a transformer. My current standard pickups are high Z, but still different from most of the stuff out there. I've been planning on making a new Low Z pickup, using the heavy wire, and a transformer, and in standard soapbar style cases.

As I mentioned earlier I'm planning on building myself a version of a LP Triumph. I have the pickup covers and mounting rings, a long scale LP neck and an inlay set from a 70s LP Custom. I could make a more correct short scale mahogany neck, but I like the fact that I have a real Gibson neck, and I like long scales better. Now I just have to make the body, finish the neck and wind the pickups. I'm probably not going to use the plastic control plate, since they seem to bend and stuff after a while. So it will be a cross being the triumph and original LP bass.

Info on the pickups is hard to come by.  A thread was started over at the Pickup Makers forum back in '07, and that had some interesting tidbits.

http://music-electronics-forum.com/t3737/

That included the photo of the pickup made by Chuck Burge.

So any info is helpful. I've never had a set of the real pickups, so I wont know how close mine are since I have nothing to compare them to. I did get some specs from someone who did resistance measurements of each coil tap, and general info like magnet size. Based on that, and the over all size of the coils, I should be able to wind a pretty faithful replica of the pickups. I plan on making a rubber mold of the covers so I can cast them, since they are hard to come by.

I'm a very small one man operation, and I enjoy doing unusual pickups.   ;D

117
they are bigger than a Melodymaker coil (they will not even come close to fitting into a Melodymaker cover!) with 2 3/16" blade length openings. can anyone say "4 glued in shallow false pole pieces"?

You don't need fake pole pieces. Just use some real steel screws. You would need a keeper bar threaded for the screws, and then you could use a bar magnet under the pickup like on a regular humbucker.

But blade poles are much better than round poles.

Those bobbins look like these:

HUMBUCKER BLADE PICKUP BOBBIN BLACK

http://www.mojotone.com/guitar-parts/pickup-parts-bobbins-flatwork-humbucker/Mojotone-Humbucker-Blade-Pickup-Bobbin-Black



I use them for 4-string bass humbuckers, as well as guitars.




118
Bill's Shop: Projects, Mods & Repairs / Re: Gotoh EB-1 pickup
« on: June 22, 2011, 11:00:39 AM »
I thought these were pretty heavy too.
See David Schwabs comments on this old thread
http://music-electronics-forum.com/t3162/

That would be me!

What's going on here is this Gotoh pickup is wound with very heavy gauge wire, so it's really a low impedance pickup. I'm not sure why they would do that, but I had heard that the early Gibson or Epi (I forget which) reissues had these 2K pickups.  This made me think they were doing this because of the reissue LP Signature (Jack Casady) bass using the same gauge wire. I guess they wanted a cleaner tone out of it.

I have a 70s EB-0 pickup that I had rewound to about 12K. I had it in my '73 Ric, and it over powered the bridge pickup. Rewound it still had a similar tone, but was a little more open sounding. It wasn't super bright though. My pickup read about 30K before I rewound it, as did the pickup in the EB2D I used to own.

The real Mudbucker is wound with standard 42 AWG wire, and has a whole truckload on each coil. You can have that one rewound, but it would be more expensive than the Mudbucker sold at www.guitarpartsresource.com, which is listed at 29k.

119
Bill's Shop: Projects, Mods & Repairs / Re: Low Z bass pickups
« on: June 22, 2011, 08:42:59 AM »
Maybe these pics are helpful, with the building of the pickups? They are of my prototype Les Paul Bass:






You can see they did use some sort of bobbin. It's made out of three different components.
The backplate and front plate are white plastic. Handmade obviously when you look at the edges.
The magnet is set in an opaque plastic casing.
And there's two small wooden blocks on the each side to keep the magnet tight in that opaque casing.

Wow, that's very interesting! Does that have the multiple taps?

Hi everyone, sniper sent me over here.

As he might have mentioned, I'm also building myself a LP Triumph inspired bass. I also got a set of the "pickup kits" from Greatdealz, and one of the 80s unfinished long scale LP necks.

The picture of the bobbinless LP coil was made by Chuck Burge, who worked for Gibson R&D and designed the RD series as well as the Victory Bass and EB2D.  He passed away in 2009 and a lot of his old stuff was being sold off. I think it was on eBay, but I forget now. That's where that photo was from. If I remember correctly, it was a LP recording guitar with an extra set of prototype pickups.

The information I got about the LP bass pickups not having bobbins was from someone over at the Pickup Makers Forum who had a set of the pickups and took some measurements and posted the info. I've never seen a set in person (except on a Triumph bass back in the 70s) so I don't know for sure. Some type of bobbin makes things a lot easier for sure.

He wrote:
Quote
The outside of wraps is 1/2" from the magnet surface, and there is no bobbin. There is a transverse wrap of tape around the coil to keep it in.

The red bobbins that come with the pickup "kit" are from the guitar, as they are too narrow and too tall for the bass covers. You can also see them in this photo of Les and the "log".

It wouldn't be too hard to make bobbins though. I do it for most of the pickups I make. It would make winding the coils easier, especially with that heavy wire.

Another difference between the guitar and bass pickups; the guitar pickups used 24AWG wire, while the bass used 32AWG. The LP Signature pickups were very different. Bill Lawrence designed those, and he used 42AWG wire and they are set up like conventional humbuckers. The reissue Jack Casady bass uses 24 gauge wire, like the LP Recording guitar.

David

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