I'm having issues with potting my latest batch of pickups. I usually use a 10% mix of beeswax and paraffin, but for some reason they are still microphonic? My method is using a brake bleeder at 20 in Hg. Vacuum Till no bubbles. Takes about 10 mins. This is the 2nd attempt with this pickup. Any ideas?
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What potting wax mix?
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Well it seems by the description that the either there's a pocket with loose winds that the wax can't get into (I know, DUH). It's probably possible (though risky, but I've done it) to remove the magnets and reinsert them after potting. That would allow the wax better access to the inner winds. Are you using a new magnet wire that may have an unusual coating? Something siliconized or PTFE, uh, ized? might actually be shedding the wax. Just thinking out loud. I don't buy magnet wire so I really don't know if this is possible."Take two placebos, works twice as well." Enzo
"Now get off my lawn with your silicooties and boom-chucka speakers and computers masquerading as amplifiers" Justin Thomas
"If you're not interested in opinions and the experience of others, why even start a thread?
You can't just expect consent." Helmholtz
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what kind of pickup are you having trouble with?
Strat, tele, HB, P90, etc. ?
Some Pictures maybe?
T"If Hitler invaded Hell, I would make at least a favourable reference of the Devil in the House of Commons." Winston Churchill
Terry
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Is it covered? Are you potting it assembled? If not covered, are the coils already taped? Are the screws in? etc...
10% beeswax seems fine. I think most guys go a little higher in beeswax, but there are also guys that just skip it and use straight paraffin. I'm not the potting expert, but pretty much anything that has a reasonably high melting point and can soften/sticky the paraffin a little should work fine. I've even used Vasoline! My point is that I don't think your wax mix is the problem."Take two placebos, works twice as well." Enzo
"Now get off my lawn with your silicooties and boom-chucka speakers and computers masquerading as amplifiers" Justin Thomas
"If you're not interested in opinions and the experience of others, why even start a thread?
You can't just expect consent." Helmholtz
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You might have to 'triple wax pot' your humbucker like Epi does.
1) Pot your coils individually before assembly
2) After assembly, heat up the coils with a hot air gun to loosen up the wax and repot the pickup again. Clean off all the extraneous wax.
3) When you put the cover on, heat up the cover and the pickup, assemble both, fill up the cover with molten wax, and and then vacuum repot again.
This should make your pickup impervious to all possible microphonics.
No lie
Ken
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Originally posted by ken View PostYou might have to 'triple wax pot' your humbucker like Epi does.
1) Pot your coils individually before assembly
2) After assembly, heat up the coils with a hot air gun to loosen up the wax and repot the pickup again. Clean off all the extraneous wax.
3) When you put the cover on, heat up the cover and the pickup, assemble both, fill up the cover with molten wax, and and then vacuum repot again.
This should make your pickup impervious to all possible microphonics.
No lie
Ken"Take two placebos, works twice as well." Enzo
"Now get off my lawn with your silicooties and boom-chucka speakers and computers masquerading as amplifiers" Justin Thomas
"If you're not interested in opinions and the experience of others, why even start a thread?
You can't just expect consent." Helmholtz
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Good pick harmonics, with controlled feedback.
Try medium tight coils, well paper taped.
Then pot once with cover on fully assembled.
Drain excess wax out the corners.
GL,
T"If Hitler invaded Hell, I would make at least a favourable reference of the Devil in the House of Commons." Winston Churchill
Terry
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