1/4 Pounder Post-Mortem

Rich_S

HomeGrownToneBrewologist
OK, all you CSI wannabes, here's your chance. I have an old tapped 1/4 Pounder that I bought in about 1985. I used it for a while, then stored it away. Twenty years, four kids, and more house moves than I can count later, I dug it out of my parts bin. Before installing it in my MIM Tele, I checked it with a meter. Drat! The coil's open between the black lead and the tap.

Obviously, it's been damp over the years. Not submerged, just "damp basement" humidity. It also been stored in unheated garages and hot attics. Always in its little plastic box, with the foam padding. The poles had a little rust, and there was some dusty green mold on the fiber baseplate, where it was resting on the foam pad. Neither would I consider excessive. :rolleyes:

Here's the weird thing - at both ends of the coil, the top fiber plate has been pushed up slightly, enough so the outer-most pole pieces are now recessed into the top plate a bit. You can see the upward curve of the fiber plate if you look at the pickup from the side. What would cause this? Is it possible that the potting on the coil is hygroscopic and swelled with the moisture, forcing the plates apart?

I assume it's not worth fixing, and have ordered a brand new one. Still, I'd like to know what went wrong. There are 40-year-old Fender pickups still going strong, so why not this one?

I guess the next time I store a pickup away, I'll seal it up real well and include a bag of dessicant gel.
 
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Re: 1/4 Pounder Post-Mortem

You might not want to just toss it. I had a tapped QP in the neck position of my Strat that I installed in 1983. A few years ago, my pet ****atoo walked up to my guitar and bit the pickup, breaking one of the coil wires so that the full tap position didn't work at all. I rebuilt the Strat last summer, and I sent the pickup back to SD, and they rewound it for me. It works as good as new, and being nearly 25yrs old, it has a mellower sound than it used to (I'm guessing because the magnets had aged some). And it was cheaper than a new one, for sure. Old pickups can sound very very good. They seem to improve with age, almost like good wine.
Now, yours sounds like it has some damage, but I would dry it out really well, scrub it over good, and then see if SD can repair it for you. You may find it sounds better than a new one!


P.S. Oops! I didn't realize that the name for a white parrot of the Cacatua genus had a bad word in it! Oh well...
 
Re: 1/4 Pounder Post-Mortem

hahaha, would have thought it would have left that one alone, ****atoo doesn't sound that bad to me.

as for the pickup. get it rewound or at least use the magnets. they are aged and a little weaker but they should lend a sweeter tone to the pickup, just like 40 year old fender pickups or pafs or duncans antiquitiy line.
 
Re: 1/4 Pounder Post-Mortem

I guess vintage resist because the guitars where they are mounted resist too!!! I mean, if you place a highly valued vintage guitar in your porch for 20 years probably it will be that teared that it won't be playable at all. And I guess its pickups too...

I think the reason because 40 years old pickups still play it is beacuse owners did cared for them!!! ;)
 
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Re: 1/4 Pounder Post-Mortem

crazytooguy said:
... It works as good as new, and being nearly 25yrs old, it has a mellower sound than it used to (I'm guessing because the magnets had aged some)...

why is it that once we guys get past a certain age, we think it is the pickups that are mellower instead of our ability to resolve high frequencies :D

good luck with that pup ... to me it reads as though it is probably toast (mold, warpage, etc) ...

cheers
t4d
 
Re: 1/4 Pounder Post-Mortem

tone4days said:
why is it that once we guys get past a certain age, we think it is the pickups that are mellower instead of our ability to resolve high frequencies :D

cheers
t4d

Thats classic! :laugh2:
 
Re: 1/4 Pounder Post-Mortem

I never really considered trashing the old one - I'll either have it rewound and keep it in reserve, or give/sell it to someone who wants to experiment.

Anybody know how much Duncan charges for a re-wind job?

And come to think of it, no one really answered the main question... can the windings absorb moisture and swell?
 
Re: 1/4 Pounder Post-Mortem

I'd be surprised if the windings absorbed that much moisture but I don't know enough about it to say for sure. When I was Drooper's guitar tech we really only had to worry about him snagging his tail in strings!

Love the avatar man!
 
Re: 1/4 Pounder Post-Mortem

The windings have corroded, thats what pushed up the edges, and broke the circuit.
 
Re: 1/4 Pounder Post-Mortem

I had a Quarter Pounder I traded to bvc310 on here and it seemed the fiber does warp after age. I only had it for a while since I got it off Ebay. It may look funny but it doesn't affect sound at all. I'd get it re-wound at the least.
 
Re: 1/4 Pounder Post-Mortem

tone4days said:
why is it that once we guys get past a certain age, we think it is the pickups that are mellower instead of our ability to resolve high frequencies :D


cheers
t4d
Thats an interesting point!!! Makes alot of sense too!!
 
Re: 1/4 Pounder Post-Mortem

tone4days said:
why is it that once we guys get past a certain age, we think it is the pickups that are mellower instead of our ability to resolve high frequencies :D
t4d

For years, I've had a theory that partial deafness is the reason that so many players shift from Gibsons to Fenders as their careers progress. After you kill off your ability to hear highs, you need to trade in the LP for a Strat, just so it can sound "right" again.
 
Re: 1/4 Pounder Post-Mortem

Wattage said:
When I was Drooper's guitar tech we really only had to worry about him snagging his tail in strings!

Love the avatar man!

And I like yours, too. Rick Neilsen changed my whole outlook on guitar by showing me you didn't have to be a tall, sexy, serious idol-type in a sequined wizard suit. Dorks can rock just as hard.

Sadly, these days I play more like Drooper.
 
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