Female foam latex mask. How to eliminate microphonic feedback from your guitar and bass pickups using hot wax.
Posts: You must log in or sign up to reply here. Spread a little on the elevator plate and secure it to the pickup bobbin. Pull back out and clean off the excess wax. Vintage guitar pickups potting microphonic leave your feedback below Your Name. It's mounted with rubber tubing. Again, this is just an observation—if you have the opportunity, try the differences out potfing see which you like better. The last part Vintage guitar pickups potting microphonic will look at is the bridge plate. Age: 32 Posts: X What are you looking for? The bridge pickup is super microphonic.
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This technique essentially consists of dipping the pickup into hot wax although other substances such as nitrocellulose lacquer or epoxy resins can also be used. In fact, a good chunk of pickups made today feature wax potting. Below, we take a look at how wax potting combats noise along with the potential cons this technique can have on your tone. As far as the components go, a guitar pickup actually consists of a pretty simple design; they are comprised of a coil of copper wire wrapped around a magnetic component, held together by a bobbin.
When the coil is wrapped around the magnet, it creates a magnetic field, and when you pluck a string, it causes a change in the field that is translated into a current. This current then travels through all the components of your signal chain until it reaches your guitar speakers where it is given off as sound.
In this entire chain, the only parts that should be moving are the strings and the speakers. But when you experience microphonic noise, something else is moving too — the pickup coil. Although pickup coils are wound pretty tight, they can still vibrate at loud volume levels. And it is this vibration that causes the microphonic noise.
As you might have guessed, the way manufacturers deal with coil movement and the microphonic noise it can create is by dipping their pickups in molten wax or other substances that can solidify quickly and not melt easily.
The wax keeps the coil fixed in place by filling in all the little gaps between the windings. If the pickup features a cover, manufacturers might also dip the pickup a second time in order to fill in the gaps between the bobbin and the cover. Now that the coil is unable to move, it essentially eliminates the propensity for microphonic noise although other noise issues such as cycle mains hum and EMI could still cause problems.
Check out the quick video below for a look at how Fender pots their pickups:. In fact, many even go as far as removing the wax themselves if a certain set they like is already potted.
They feel as though the wax makes the pickup lose some of its liveliness, dulling out the response. Of course, there are also many players who feel that it either doesn't make any noticeable difference or if it does, it's minor and not enough to outweigh the benefits of wax potting. Personally, I see this debate similar to that of covered versus uncovered humbuckers.
If you have a set that has not been waxed and would like to do it yourself, the process is not too complicated, as you can see in the video below Of course, if you're not comfortable messing around with your guitar's pickups, it's best you leave it to a professional or invest in a new set.
Many of today's modern pickups come wax potted and should not be affected by microphonic noise. If you're in the market for pickups, make sure to take a look at our selection by using the link below. And if you have any questions regarding the purchase of a certain pickup or any other piece of gear we carry, don't hesitate to chat with one of our friendly PAL pros by using the live chat feature below or by calling us toll-free at 1 !
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A great source for high quality replacement bridge plates is Glendale Guitars. They have an array of different models to choose from. It is well worth noting here that players such as Jeff Beck and Roy Buchannon simply lived with their microphonic pickups. That's how they feed the wire to the machine. So these things don't come potted then? Digging into Fast-Response Amps. Thanks for the replies, guys.
Vintage guitar pickups potting microphonic. How to eliminate microphonic feedback from your guitar and bass pickups using hot wax.
If you don’t talk to your pickups about potting, who will…? | Lollar Pickups Blog
Potting is the process of soaking the pickup in melted wax, in order to saturate the components, which will isolate them and reduce movement of the coils. Because of this, potted pickups have reduced likelihood of excessive handling noise, microphonic feedback or mechanical failure. Pickups are placed in melted wax for potting. During the potting process, the wax penetrates into the pickup components, and this is where diligence comes into play.
Careful timing ensures that each pickup is potted to a specifically determined degree, so as to avoid over- or under-potting. Our method of coil tensioning and potting ensures that your pickups will not become loose over time, so you can be sure the way it sounds today will be the same 20 years from now.
After being potted, every pickup is inspected…. The following is an excerpt from an interview Jason Lollar did with guitars regarding pickup potting…. Every pickup I make is potted to some extent, every design has a different level of potting and I time it closely.
I have a really consistent result the way I do it. I use to not pot anything—everything I made was unpotted. I mistakenly attributed potting to sloppy manufacturing and I printed it in my book.
Now that same line I said has become part of the dogma going around but after making thousands of pickups I realized if I drop this pickup the whole coil is going to expand like a balloon and it can even come off the bobbin. On Fender coils, part of what holds them together is the potting. It takes a lot of attention to do it right. You can even pop the metal plate off the bottom of the Tele bridge pickup to break the wax seal.
A vibrating reflector plate on the bottom on a Tele bridge pickup will definitely increase the amount of microphonics to the point it will be difficult to control which is a lot of the sound Roy Buchanan use to get. Players can then tweak the amount of microphonics in the signal by adjusting spring tension.