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FDP Forum / The 'Pup' Tent / I'm Gonna Do It!

Leftee
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VA

May 13th, 2017 07:57 AM   Edit   Profile   Print Topic   Search Topic

I'm gonna level the poles on my Fat '50s.

There is no downside. If I screw them up I'll order a set of Rumpels from Aaron.

Leftee
Contributing Member
*****

VA

May 13th, 2017 08:56 AM   Edit   Profile   Print Topic   Search Topic

Well...

No new pickups for Leftee. My attempt was a success. AKA - I got lucky. ;-)

Much happier with the tones from this guitar. Not to say a set of Aaron's pickups won't go in it some day. But not today.

The poles aren't level. But they're a lot closer to level than they were. And I had to raise both E poles. Those are the risky ones.

My biggest beef was the low output of the small E string. I always had to go up a string size for that string to get a decent level. No need to do that now.

Peegoo
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I've got my own

double-cross to bear
May 13th, 2017 04:13 PM   Edit   Profile   Print Topic   Search Topic

Dude! You rolled the dice and won! That is a risky proposition on a non-bobbin pickup.

Tip up an adult beverage in celebration :o)

Leftee
Contributing Member
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VA

May 13th, 2017 05:06 PM   Edit   Profile   Print Topic   Search Topic

I won.

Or I lost.

I kinda wanted to order some pickups from Aaron.

littleuch
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Florida

May 13th, 2017 05:32 PM   Edit   Profile   Print Topic   Search Topic

You could always try putting it back the way it was.




Leftee
Contributing Member
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VA

May 13th, 2017 05:50 PM   Edit   Profile   Print Topic   Search Topic

I'm kinda proud of my accomplishment. Or luck. Whatever.

Mick Reid
Contributing Member
***

Australia

American-made in Oz!!
May 13th, 2017 07:03 PM   Edit   Profile   Print Topic   Search Topic

Good on ya Leftee!

"That is a risky proposition on a non-bobbin pickup."

Hey P, please explain. Am I missing something?
Don't these

Fat 50's have bobbins?

Leftee
Contributing Member
*****

VA

May 13th, 2017 07:40 PM   Edit   Profile   Print Topic   Search Topic

They don't, and the windings are against the poles and the E poles bear most of that pressure.

And those were the hardest poles to move too.

(This message was last edited by Leftee at 09:42 PM, May 13th, 2017)

Leftee
Contributing Member
*****

VA

May 13th, 2017 07:42 PM   Edit   Profile   Print Topic   Search Topic

This is a good illustration.

click here

Mick Reid
Contributing Member
***

Australia

American-made in Oz!!
May 13th, 2017 09:54 PM   Edit   Profile   Print Topic   Search Topic

Thanks Leftee.
I guess I'm confused about what is a bobbin and the flatwork. I've never worked on or wound pickups so it's not an area that's familiar to me.


Peegoo
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I've got my own

double-cross to bear
May 19th, 2017 08:48 PM   Edit   Profile   Print Topic   Search Topic

Mick, the linked pic here is the 'classic' construction: mag poles pressed into the top and bottom flatwork. The coil wires are wound directly on the pole pieces.

Some makers apply a strip of tape over the mags before winding because the poles can corrode, and the oxidation can abrade the varnish or poly insulation on the coil wires and short them out.

With the wire wrapped directly on the poles, imagine what can happen if you press one of the poles through the coil, especially one of the end poles: it slides against the coil wraps. If the mag has any roughness, it can abrade the insulation. Worse--it can break the wire.

Non-bobbin construction

(This message was last edited by Peegoo at 10:56 PM, May 19th, 2017)

Peegoo
Contributing Member
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I've got my own

double-cross to bear
May 19th, 2017 08:54 PM   Edit   Profile   Print Topic   Search Topic

Pickup bobbins, on the other hand, are one-piece units made of polyethylene or other injection-molded thermoplastic. See linked pic.

Notice how there's a little tunnel for each pole to be pressed into. The plastic sides of each tunnel separate the pole from the coil wire.

You can see how sliding a pole up or down is perfectly safe because there's no contact between the mag and the coil wire.

Many purists argue these type of pickups don't sound "correct" because that extra plastic surrounding each magnet prevents the coil wires from snuggling up against the magnets like ol' Leo used to do it.

The bobbins on a Gibson humbucker are like this. Even the original PAFs were made this way.

Plastic pickup bobbin

(This message was last edited by Peegoo at 10:57 PM, May 19th, 2017)

Mick Reid
Contributing Member
***

Australia

American-made in Oz!!
May 20th, 2017 12:07 AM   Edit   Profile   Print Topic   Search Topic

Thanks for the info guys! Got it!

FDP Forum / The 'Pup' Tent / I'm Gonna Do It!




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