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Gear Discussion Forums => Gibson Basses => Topic started by: Pekka on June 05, 2010, 11:26:56 PM

Title: '60s T-Bird pickup vital statistics
Post by: Pekka on June 05, 2010, 11:26:56 PM
Hello everyone! I've been trying to find information about the original Thunderbird pickups. The usual stuff: ohms, wire gauge, magnets etc.

I have two NOS '70s covers and my friend is a pickup maker, you'll might guess the rest!:) Our aim is not to make an exact copy but to get into the ballpark.

Thanks in advance!

PS. The pickups are going to the inverness green NR seen on this thread:
http://www.talkbass.com/forum/showthread.php?t=657989&highlight=non+reverse (http://www.talkbass.com/forum/showthread.php?t=657989&highlight=non+reverse)
Title: Re: '60s T-Bird pickup vital statistics
Post by: Dave W on June 06, 2010, 12:38:10 PM
Welcome aboard, I'm going to move this to the Gibson board where it's more likely to be seen by someone who has the specs.
Title: Re: '60s T-Bird pickup vital statistics
Post by: Pekka on June 06, 2010, 12:42:28 PM
Welcome aboard, I'm going to move this to the Gibson board where it's more likely to be seen by someone who has the specs.

Thanks a plenty Dave!
Title: Re: '60s T-Bird pickup vital statistics
Post by: Dave W on June 06, 2010, 12:53:14 PM
I know we've discussed them here before, finding the specific threads is the problem.

IIRC they are blade-type pickups but the blades are magnets, rather than steel blades with magnets below the coils.
Title: Re: '60s T-Bird pickup vital statistics
Post by: Highlander on June 06, 2010, 01:05:01 PM
I did a general google with "Thunderbird pickup specifications" which turned up a variety of things - one link (talkbass) referenced Bill Lawrence, alnico bars, twin coils on bobbins and a reference to being based on a Melody Maker pup...? sounds quite like a scaled down Mudbucker...?
Title: Re: '60s T-Bird pickup vital statistics
Post by: TBird1958 on June 06, 2010, 01:19:12 PM


 Save yourself a lot of time effort and money.

Mike Lull's is a reverse enigineered '60s Gibson pickup, the bobbin shape, wire etc. are all the same materials Gibson used. The cover is the correct 2 screw configuation and is stamped by the same California based manufacturer that Gibson used. Are they expensive? Yes! $289.00 apiece and chrome bezels are $30.00 ea. Since the pickup is the primary component in the voice of your bass my rationale is that they are totally worth the price. I have them installed in 4 of my basses, they are fantastic.

Soundclip?
And a Youtube of my band playing Sabbath's"Paranoid"......Sorry I'm way out in front of the mix! The bass is a single pickup Lull Thunderbird thru an all tube Traynor.

http://www.youtube.com/watch?v=Jj9LWATBgoc

In a finished BaCH TH-1
(http://i222.photobucket.com/albums/dd306/veronicasteed/xmasbirds005.jpg)

and a Gibson
(http://i222.photobucket.com/albums/dd306/veronicasteed/NikkiII004.jpg)


Install on a BaCH

(http://i222.photobucket.com/albums/dd306/veronicasteed/birdparts007.jpg)
Title: Re: '60s T-Bird pickup vital statistics
Post by: Highlander on June 06, 2010, 01:23:30 PM
There speaks the voice (ok, texts) of experience, and probably a few more experiences than most of us... ;)
Title: Re: '60s T-Bird pickup vital statistics
Post by: Dave W on June 06, 2010, 04:36:44 PM
@ Mark: not having owned a 60s Bird, I'll take your word on the Lulls. But they're extraordinarily expensive in the US, and I imagine that they would be even more expensive in Finland, where Pekka is. He's got someone willing to make something similar to the originals, and (I assume) at a price he can afford. I encourage that.

@ Ken: they're not like mudbuckers. Bill Lawrence is the one who told me that they were constructed like the original Melody Maker pickups. i.e. with the coil wound around a blade magnet rather than steel polepieces. Except that the Melody Maker was a single coil, while these were humbuckers.

Somebody here has the approximate DC resistance specs. I recall the wire being AWG #42 like most Gibsons, but I'm not sure.
Title: Re: '60s T-Bird pickup vital statistics
Post by: TBird1958 on June 06, 2010, 05:46:43 PM


 Indeed you're correct Dave.......They are indeed expensive.. But the bass he has to put them is beautiful and were he selling it would be worth a lot of money. Why use anything but the best. Or reconstruct something that already exsists?
Title: Re: '60s T-Bird pickup vital statistics
Post by: Pekka on June 07, 2010, 12:34:45 AM
Well, I've drooled over the Lull pickups the first day I saw them available. They would be the easiest option. But, as Dave said, the money is the issue. Also...

-my friend is an experienced pickupmaker who has done some great pickups for my 12-string basses, he is willing and interested to experiment and I want to suppot him (plus he is my neighbour which helps...:))
-the 70's covers (plus the ring for the bridge PU) might look a bit different than the 60's ones but they look good enough for me, the 2nd best option
-I won't be selling that bass;)
Title: Re: '60s T-Bird pickup vital statistics
Post by: Stjofön Big on June 07, 2010, 02:37:10 AM
Pekka! You mention 12-string bass, not only one, but basses! Pictures, please! And info!
Title: Re: '60s T-Bird pickup vital statistics
Post by: TBird1958 on June 07, 2010, 08:55:50 AM


 I can understand the $$$ aspect and don't dispute it, however you'll find it very difficult to get info about the pickups - they are soldered together. Dissassembly isn't highly recommended. So by the time it's all said and done....... ;)   
Title: Re: '60s T-Bird pickup vital statistics
Post by: Pekka on June 07, 2010, 09:42:19 AM

 I can understand the $$$ aspect and don't dispute it, however you'll find it very difficult to get info about the pickups - they are soldered together. Dissassembly isn't highly recommended. So by the time it's all said and done....... ;)   

I know but even the basic info helps. The get into the ballpark is the goal this time. The bass sounds great with the Schaller humbucker it has now, and to be honest, if it had the same look as the original I'd leave it there and add another to the bridge. It's only a replica (albeit a fine one), not a real Gibson.

Thanks already to everyone for the help!
Title: Re: '60s T-Bird pickup vital statistics
Post by: Barklessdog on June 07, 2010, 09:55:56 AM
Long time no see Pekka, fellow Proggie fan!

Here is the info I collected years ago from the Pit- Hope it helps- Compares 60's pups to 70's
Quote
'76 t-bird pickup
------------------------------------------------------------------------
impedance: 6.5 kilohms total
wiring: 2 coils in series (humbucking)

sound compared to other t-birds:
sorry, I have none to compare with :-(

construction:
like a stacked humbucker turned on its side,
with a "rail" or "blade" polepiece running through
both coils. There is a little gap between the coils
where the single bar magnet sits on top of the rail.

They are constructed the exact same way Bill Lawrence described the original T-Bird pups: a conventional upright humbucker with bar magnets and plastic bobbins. They are housed in a chrome metal cover with two holes for mounting screws - one on each side.
dc resistance is 9,56 kOhm and they measure 3,58 x 1,49 inches. They came with chrome mounting rings.
I bought them several years ago from a local dealer who had ordered them together with some lipstick pups. Unfortunately I've been unable to compare them to a "real" T-Bird, since I don't own one. But I had them installed in two other basses ( I dare not say, which) and what I can report is I found them quite "agressive in the high midrange", if you know what I mean... 3,58" and 1,49".

"Below is excerpts from info sent directly to me from Seymour DUNCAN. Not an associate but Seymour himself. I'm shortening it and putting it in the format from the Pit request"

"60s pups have nothing in common with the 70s pups. Cosmetically 60s pups have 2 screws vs. 3 screws from 70s. The wiring on a 60s pup is std Gibson gold braid and the pups are wired up similar to a jbass. The output is typically in the 7.8 - 8.7 k-ohm area. 70s pups are wiring is WEIRD! the tail pup have the braid, the neck pup has a 3 wire arrangement. If the pups are not wired exactly correct (its a 1 shot wiring scheme that follows no rhyme or reason) you will have no output. The tail of a 70s pup is about 14k, the neck is about 6.5 and they balance out. If you take you reading at the jack it will appear about 8.4 each pup. AT the coil its way different. This has been giving repair guys fits for years. As a matter of fact, my pups had to go back to Seymour after rewind because they were both wound in the 8k range. A 70s pup is deeper then a 60s pup. NEVER EVER EVER pull the cans on tbird pup. 60s they keep the assembly together, 70s there wires soldiered to the inside of the cover and sometimes epoxied. THEN there are variants to each that differ slightly. I've seen 3 different thicknesses to the 70s pups. 60s pups on a 70s bass will need to have a block of wood under the pup and it should go so high that you will see under the pup. 60s cavities may need to be deepened to hold a 70s pup. I own and use both & other then cosmetics, you cant put a 70s bass and a 60s bass in the same category. The ultimate recording bass is a 60s Bird. This is a direct quote from Tom Peterson who is a good friend of mine. Eric Klaastadt Luthier extraordinaire and repair guy for the Ox aka Uncle Twiddley said the NON-reverse 4 was J.E.'s favorite recording bass. The modern basses share NOTHING with the old ones other then body shape. Hope it helps

"Just to clarify, ALL 60s pups were the same. They all had 2 screw mounts. On a Tbird IV, the pots were wired just like a Jazz and the outer braid(black wire on Fender) is the ground and is wired to the pot. The inner braid is the hot and goes to the middle lug. The 70s 3 screw mounts are totally different. TRUST ME, PLEASE TRUST ME if you want to totally F**K up your 60s or 70s tbird pup to the point of NON-REPAIR, take the cover off. Quote form Seymour... A little trick for you guys... An early model 70s Dimarzio bass bucker can be filed down and will fit under a Bird cover. The slightly later ones cant. BTW, I just built an EB2 that other then the f-holes looking straight down, (I balsa'd around the f's) the bass is filled with foam Peas because I installed 2 Chandler Tbird pups...


Title: Re: '60s T-Bird pickup vital statistics
Post by: Pekka on June 07, 2010, 10:58:16 AM
Thanks a plenty and hi Barkless Dog!
Title: Re: '60s T-Bird pickup vital statistics
Post by: Daniel_J on June 07, 2010, 04:20:45 PM
I was also interested in these specs. Not that I intend to get a T-Bird pickup made, but like Pekka I wanted to know some of its vitals, just to try to understand a little about output and basic structural details.

Anyway, here are some pics I saved a while back. Don't remember where I've found them, but if I'm not mistaken they're from a guy called David Schwab, apparently a pickup maker.
(http://i718.photobucket.com/albums/ww186/daniel_japeta/T-Bird%20pickup/T-Bird%20pickup/tbird_pu_back_small.jpg) (http://i718.photobucket.com/albums/ww186/daniel_japeta/T-Bird%20pickup/T-Bird%20pickup/tbird_pu_uncovered_front_small.jpg)
(http://i718.photobucket.com/albums/ww186/daniel_japeta/T-Bird%20pickup/T-Bird%20pickup/tbird_pu_uncovered_side_2_small.jpg) (http://i718.photobucket.com/albums/ww186/daniel_japeta/T-Bird%20pickup/T-Bird%20pickup/tbird_pu_uncovered_side_small.jpg)

BTW Mark, I know it's not my business but if you don't be carefull, your love for the Lull pickup soon is going to become something like Uwe's black hardware fetish...  ;)
Title: Re: '60s T-Bird pickup vital statistics
Post by: OldManC on June 07, 2010, 04:51:50 PM
BTW Mark, I know it's not my business but if you don't be carefull, your love for the Lull pickup soon is going to become something like Uwe's black hardware fetish...  ;)

Mark's fetishes are what make him so endearing to all of us here!  :mrgreen:
Title: Re: '60s T-Bird pickup vital statistics
Post by: TBird1958 on June 07, 2010, 05:13:22 PM


  ;D

I'm a girl of simple taste.................I like the best! 

Doesn't matter if we're talkin' Lingere or Thunderbird pickups.






 
Title: Re: '60s T-Bird pickup vital statistics
Post by: Dave W on June 07, 2010, 06:07:15 PM
Daniel, that's a 70s sidewinder.
Title: Re: '60s T-Bird pickup vital statistics
Post by: Hornisse on June 07, 2010, 06:11:17 PM
Almost looks as if they used 2 of the G-3 pickups side by side. 
Title: Re: '60s T-Bird pickup vital statistics
Post by: Daniel_J on June 07, 2010, 09:17:25 PM
Daniel, that's a 70s sidewinder.

So, nothing to do with the T-Bird pickup?
Title: Re: '60s T-Bird pickup vital statistics
Post by: TBird1958 on June 07, 2010, 09:27:12 PM

 It's the pickup from a '76 'Bird. Personally I like them in '76's, however it is nothing like a '60s pickup in sound or construction, also it's taller.
Title: Re: '60s T-Bird pickup vital statistics
Post by: Dave W on June 07, 2010, 10:44:54 PM
To add to what Mark said, the EB-series mudbucker and the 76 T-Bird pickup use the same sidewinder principle. But unlike the mudbucker, the 76 T-bird pickup has normal size coils and isn't way overwound. Again, completely different construction from the 60s T-Bird pickups.

Title: Re: '60s T-Bird pickup vital statistics
Post by: Highlander on June 08, 2010, 02:05:05 AM
That's where I was getting mixed up...
Title: Re: '60s T-Bird pickup vital statistics
Post by: JazzBassTbird on June 08, 2010, 05:59:56 AM
Hello everyone! I've been trying to find information about the original Thunderbird pickups. The usual stuff: ohms, wire gauge, magnets etc.

I have two NOS '70s covers and my friend is a pickup maker, you'll might guess the rest!:) Our aim is not to make an exact copy but to get into the ballpark.

Thanks in advance!

PS. The pickups are going to the inverness green NR seen on this thread:
http://www.talkbass.com/forum/showthread.php?t=657989&highlight=non+reverse (http://www.talkbass.com/forum/showthread.php?t=657989&highlight=non+reverse)

This isn't a spec that will affect the sound, but I've disassembled 4 '60s TB pickups in the past, 1 pair with nickel covers from a reverse 'Bird, and a pair of chrome covered PUs from an NR '67.

1. Most (or all) '60s TB pickups have bobbins originally intended for a Gibson steel guitar. It was the only part in their inventory long enough to fit a bass, but these were molded with holes for adjustable pole pieces so Gibson filed the centers out (somewhat crudely, in fact) to fit the blade magnets.

2. The nickel covered PUs had cream bobbins and the chrome pickups had black...sort of like PAFs from the '50s!

Again, this won't affect the sound, but interesting details nevertheless...
Title: Re: '60s T-Bird pickup vital statistics
Post by: uwe on June 08, 2010, 09:38:27 AM
Wot? Color of the bobbins does not affect sound?!!!
Title: Re: '60s T-Bird pickup vital statistics
Post by: Highlander on June 08, 2010, 03:00:40 PM
Fins, Uwe... fins...
Title: Re: '60s T-Bird pickup vital statistics
Post by: uwe on June 09, 2010, 03:28:16 AM

Ah, yes, how could I have forgotten that.  :-[
Title: Re: '60s T-Bird pickup vital statistics
Post by: Highlander on June 09, 2010, 09:58:06 AM
A man of your stature is allowed a sin or two in his life... ;)
Title: Re: '60s T-Bird pickup vital statistics
Post by: godofthunder on June 09, 2010, 02:47:01 PM
I had one apart years ago, sorry no pics but it wasn't much of anything, a big thin single coil, as stated before looked like a Gibson lap steel pickup with a blade.
Title: Re: '60s T-Bird pickup vital statistics
Post by: Daniel_J on June 10, 2010, 04:58:49 PM
So the '60s is a single coil?
Title: Re: '60s T-Bird pickup vital statistics
Post by: Barklessdog on June 11, 2010, 07:15:37 AM
Not that I am aware of?
Title: Re: '60s T-Bird pickup vital statistics
Post by: godofthunder on June 11, 2010, 08:28:55 AM
Pretty sure they are.
Title: Re: '60s T-Bird pickup vital statistics
Post by: Dave W on June 11, 2010, 02:42:12 PM
I have never seen one apart, Bill Lawrence told me they were blade magnet humbuckers.

Take a look at the excerpt from Gibson's 1966 price list on this page (http://www.flyguitars.com/gibson/bass/Thunderbird_1966.php) from Jules' site.

(http://www.flyguitars.com/graphics/65pricelistBig.jpg)

OTOH, the Blue Book of Electric Guitars says they are single coils.

Anyone else seen the innards?
Title: Re: '60s T-Bird pickup vital statistics
Post by: godofthunder on June 11, 2010, 04:15:04 PM
The one I had apart was in the 80's, no solder joints on the backing plate, it was thin wide and flat and looked with a single blade, a awful lot like a Gibson pedal/lap steel pickup. The only way I would know what a Gibson pedal/lap steel pup looks like is that they had piles of them at the House of Guitars when I worked there in the 70's and 80's. This is what I remember seeing, looks like a charlie christian pup.(http://img.photobucket.com/albums/v102/godofthunder59/eh150pickup.jpg)
Title: Re: '60s T-Bird pickup vital statistics
Post by: Pekka on June 12, 2010, 12:54:28 AM
Here's some Firebird pickup discussion:
http://www.lespaulforum.com/forum/showthread.php?t=142738 (http://www.lespaulforum.com/forum/showthread.php?t=142738)

And the the thread my friend (who built the bass) did for me:
(http://music-electronics-forum.com/t20096/)

Includes a pic of a pickup built by David Schwab.
Title: Re: '60s T-Bird pickup vital statistics
Post by: OldManC on June 12, 2010, 08:32:29 AM
I didn't read the links yet but I seem to remember talk of the original bird pickup being modeled after the Charlie Christian pickup (whether that just means it was a blade pickup, I do not know). I wouldn't be surprised if it started out as a single coil in '63 and they changed it out for a humbucker at some point. Gibson has never been known to have perfect paperwork regarding their model histories. Even literature for their current models has been known to be wrong over the years.
Title: Re: '60s T-Bird pickup vital statistics
Post by: Dave W on June 12, 2010, 12:25:11 PM
The 60s Firebirds in that discussion are humbuckers.

The Charlie Christian pickup is a metal blade with two big magnets below, but lying perpendicular to the pickup body, sticking way out.  See pic in this discussion (http://www.mylespaul.com/forums/pickups/34796-what-makes-charlie-christian-pickup-charlie-christian-pickup.html). The Firebird and Thunderbird pickups were never anything like the Charlie Christian.

It's possible that they started out as single coils and then were changed, but I really doubt that. Gibson was trying to phase out single coils except on their budget models.
Title: Re: '60s T-Bird pickup vital statistics
Post by: godofthunder on June 12, 2010, 02:05:50 PM
I think I need to fire up my soldering iron.
Title: Re: '60s T-Bird pickup vital statistics
Post by: Barklessdog on June 13, 2010, 04:17:24 AM
When I had my 60's repro built for my Fenderbird by Lindy Fralin. I remember him saying they were humbuckers with blade magnets that can't be found anymore, but can be simulated.

Why have such fat covers for single coils?

Title: Re: '60s T-Bird pickup vital statistics
Post by: godofthunder on June 13, 2010, 07:10:35 AM
As i remember seeing it it was a wide flat single coil, 60's pickup cover are very thin not like the '76s which are thick.
Title: Re: '60s T-Bird pickup vital statistics
Post by: MikeyB5 on June 13, 2010, 09:51:18 AM
This it what it should look like.
Title: Re: '60s T-Bird pickup vital statistics
Post by: godofthunder on June 13, 2010, 10:21:06 AM
Cool not what I saw though.  The one I saw was out of a 60's NR. It would not surprise me that Gibson just made up whatever to stick in the NRs. Wish i had a picture of the one I had apart.
Title: Re: '60s T-Bird pickup vital statistics
Post by: Dave W on June 13, 2010, 10:42:09 AM
Mike Lull and Jason Lollar make 60s T-Bird pickups based on their analyses of originals, and they're humbuckers. Bill Lawrence told me they were blade magnet humbuckers. Lindy Fralin and Seymour Duncan think they are too. So I think we can be sure that some of them are humbuckers. I've never heard of anyone mentioning single coil 60hz hum on a 60s T-Bird.

OTOH if you can find an example of a single coil 60s T-Bird, it would not amaze me. You never know with Gibson.
Title: Re: '60s T-Bird pickup vital statistics
Post by: Dave W on June 13, 2010, 10:46:21 AM
Small world department: I'm sure some of you remember MPU (Marko Ursin) from the old Pit. That's who will be building the pickups for Pekka. I saw a thread Marko started at the Pickup Makers Forum.

And oddly enough, that thread linked to an earlier thread (on that forum) where someone had copied some of the info John (Barklessdog) had compiled from my conversation with Bill Lawrence.
Title: Re: '60s T-Bird pickup vital statistics
Post by: Pekka on June 13, 2010, 10:53:35 AM
Small world department: I'm sure some of you remember MPU (Marko Ursin) from the old Pit. That's who will be building the pickups for Pekka. I saw a thread Marko started at the Pickup Makers Forum.

Actually no. Marko did start the thread at the Pickup Makers Forum just to help me to get info since he was registered there and he also built the bass which will be the "final home" of the pickups but the actual building job for which this thread will be a tremendous help
 (thanks and bows to everyone involved) will land to Rami Hakala, www.mikkihouse.fi.
Title: Re: '60s T-Bird pickup vital statistics
Post by: godofthunder on June 13, 2010, 10:57:20 AM
 While I didn't take the back off my '67s pup (a transplant not original) I can see through the two screw holes in the backing plate and it sure looks like two coils, so that one is a humbucker for sure. next stop my '69 that I have had since '77-'78 I have never touched that pup.
Title: Re: '60s T-Bird pickup vital statistics
Post by: Dave W on June 13, 2010, 11:06:49 AM
Actually no. Marko did start the thread at the Pickup Makers Forum just to help me to get info since he was registered there and he also built the bass which will be the "final home" of the pickups but the actual building job for which this thread will be a tremendous help
 (thanks and bows to everyone involved) will land to Rami Hakala, www.mikkihouse.fi.

I stand corrected!

I remember seeing pics of basses Marko built, they always looked good.
Title: Re: '60s T-Bird pickup vital statistics
Post by: godofthunder on June 13, 2010, 11:14:10 AM
Just looked at my '69 (chrome not nickle plated cover) and it also is a humbucker. Looks like I am wrong, but I swear the one I had apart was a big single coil.
Title: Re: '60s T-Bird pickup vital statistics
Post by: uwe on June 13, 2010, 03:39:09 PM
The myth of a sixties early TBird single coil pup has been around for long and though I've never seen or heard one there might be more than a grain of truth to it. None of my four sixties Birds seems to have one and there is a 64 Rev II among them - on that the sole pup sounds almost mudbuckerish, billowing lows and all.

Title: Re: '60s T-Bird pickup vital statistics
Post by: MikeyB5 on June 13, 2010, 03:44:10 PM
This it what it should look like.
This is what I saw after I opened up the pickup cover on my '64 reverse. A wire had broken off while putting it back together after a refin job in the '70s. So I pulled the backplate off and that is what was there.The pickup needed rewinding so my guy supposedly sent it to Gibson for a rewind.
Title: Re: '60s T-Bird pickup vital statistics
Post by: Dave W on June 13, 2010, 05:31:16 PM
Thanks, Mikey, that's exactly what I imagined from Bill Lawrence's description.
Title: Re: '60s T-Bird pickup vital statistics
Post by: Pekka on December 30, 2010, 11:20:46 AM
Oops, I forgot to update. Here's the pickups I got for my MPU non-rev:

(http://dl.dropbox.com/u/4322198/TB%20pickup.jpg)
(http://dl.dropbox.com/u/4322198/TB%20pickup2.jpg)

(http://dl.dropbox.com/u/4322198/non-rev.jpg)

Some samples (forgive the too extreme panning and Devo-ish basslines...)
http://dl.dropbox.com/u/4322198/non-reverse_sound.mp3 (http://dl.dropbox.com/u/4322198/non-reverse_sound.mp3)
Title: Re: '60s T-Bird pickup vital statistics
Post by: Barklessdog on December 30, 2010, 01:19:06 PM
Nice bass, great color
Title: Re: '60s T-Bird pickup vital statistics
Post by: Denis on December 30, 2010, 02:42:30 PM
Nice bass, great color

x2! If I was going to get one of BaCH's unfinished NRs that's what color I'd go for!