The Shocking Truth About CAVITY SHIELDING and Your Guitar's Tone

Uncover the shocking truth about cavity shielding and how it affects your guitar's tone in this informative video. Say goodbye to 60 cycle hum for good!
For the letter C of the A-Z of Guitar series Daniel from Devil & Sons Guitars shows you how.
Check out the A-Z playlist for more:
• A-Z of Guitars from De...
Each of the 26 videos in the A-Z of Guitars featured a letter taken from a well known guitar related brand logo and in this video Daniel reveals where they all came from (don't worry if you haven't seen all the videos, you can still join in and guess along): • The A to Z of Guitar b...
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[@Hambonebodi]

Some people say shielding changes the tone , it sure does , it makes the guitar output signal louder than the noise ❤

[@DevilAndSons]

Ha. Great comment

[@TimSaad]

You’ve demonstrated the need for cavity shielding quite thoroughly! Although I already knew this, I really enjoyed watching the video! The last experiment had very interesting results!

[@DevilAndSons]

Thanks. I really wanted this to help me decide if I should use tape or paint, I'm probably going to use the paint going forward but I really like the look of shielding tape. At least it's clear that they both have an effect.

[@catpmetcalf8596]

Because of this video I ordered the Cat shielding paint for a humming guitar. It's thick stuff and worked 100 percent with one coat on bare wood. Still plenty left for a couple more guitars if ever needed. I used a small torch beam as I worked to show up any tiny bits I missed and kept brushing till they were covered. I used your tip of painting small tabs of paint on the top edge of the cavity to connect with the shielding on the scratch plate. It dries quick but I took no chances and left it overnight before reassembling. I now have a perfectly quiet guitar. Thanks again for the vids, Educational AND practical.

[@DevilAndSons]

Hey, it's a pleasure and I'm so glad it worked. A client just sent me a guitar to do some upgrades to, it had a hum and no shielding. I don't really understand why manufacturers (and this is a well known midrange price) don't shield.

[@kimseniorb]

you’re not grounding it in the first one, so its pointless. shielding makes 0 difference when you’re touching the strings, it only affects the noise floor when the strings are released

[@DevilAndSons]

The whole point of this experiment is to reveal what works and doesn't. It is surprising what some of the results are. You're spot on with touching the strings.

[@6rake9]

Thank you for putting the work into this. I really like this experiment.

[@DevilAndSons]

Thanks so much. It was actually great fun and I must do more things like this.

[@6rake9]

@@DevilAndSons I agree! I thought might be interesting to see if guitars with separated pickup and cavity routes (such as gibson or certain ibanez routes) would benefit since you can't get tape through the wire holes to make a full connection between cavities like you can with a pick guard.

[@DevilAndSons]

Good idea. I have also been thinking about this, and about using a wire to link them together. I also want to see the difference between shielded and non-shielded wires.

[@6rake9]

@@DevilAndSons yes, that would be an excellent experiment as well. I have some wires that hum super loud when I touch them so I'd have to imagine it would be much better with shielded wires instead

[@jamesmarshall9420]

The sixty cycle hum is primarily introduced though the pickups, so building afariday cage around the pickup cavity will produce the most dramatic reduction in hum...

[@DevilAndSons]

Thanks for adding this information, much appreciated.

[@digitalchris6681]

.... and stop them working !

[@toddplager8676]

Fantastic video! Thanks This is gonna make my job soo much easier!! APPRECIATED!!!!

[@DevilAndSons]

I'm so glad. Thanks for watching

[@DevilAndSons]

I recently made thus which should be helpful too kzbin.info/www/bejne/ameui5mgo86fg68

[@bearsgarage272]

Glad i stumbled across this vid. Im currently building my first guitar and completely overlooked the shielding aspect. That buzz would have driven me crazy

[@DevilAndSons]

Exciting. What design are you building?

[@bearsgarage272]

@@DevilAndSons headless 6 string based on the Strandberg Boden

[@DevilAndSons]

Excellent. Enjoy the build.

[@danielpedroso4311]

I would love to see a test like on a guitar that has no pickguard

[@DevilAndSons]

Good idea. Next time I have one in the workshop I'll film a test on it. The problem is a lot of the guitars I have that come through like that have humbuckers where the hum is a lot less noticeable due to the type of pickup. Still, worth a go. Thanks for watching and commenting.

[@SWAMPTTHING]

I was getting ready to reassemble an old Peavey T-15 with new pots and caps and paint. It originally came with no shielding. I was indecisive about going though the hassle of shielding anything but you certainly encouraged me to retrieve my shielding paint and foil tape while everything is still in parts on my bench LOL. Thanks for the great video and going though the trouble of presenting this.

[@DevilAndSons]

Thanks so much for letting me know. I am positive it is worthwhile. I didn't cover though that humbuckers are often shielded with their own metal plates at the back, and that you can get shielded wire... but I think it's still worth the effort.

[@SWAMPTTHING]

These pickups were very much like typical great sounding single coils complete with lots of noise so it’s worth the effort… especially since it’s in pieces right now.

[@DevilAndSons]

Do let me know if it was worth it.

[@HappyHermitt]

I shielded my Squier strat with Elk copper tape and it's absolutely 100% quieter. Zero noise. It worked better than I expected.

[@DevilAndSons]

That's great, thanks for commenting. I'll have to look into Elk brand.

[@senselocke]

This is an excellent comparison video and tool, easy to follow and very useful. Thank you!!

[@DevilAndSons]

Thank you for taking the time to comment, I'm glad you found it useful.

[@lesteubes-r1t]

I scraped away some of insulating paint in the cavity of my Epi LP, but decided “it’ll be ok”. Wrong! It started humming and crackling. I had to take out all my new electronics and do it properly. Serves me right! (I was fitting new pickups and solderless connections, including larger pots attached to a pcb).

[@DevilAndSons]

Did replacing the shielding help get rid of the hum? It is magical!

[@nsjguitarsakascotsman6989]

You need to try it with humbuckers now, my thoughts are it won't be as noisy anyway though.

[@DevilAndSons]

That is one of the point of humbuckers, to eliminate that noise.

[@sparkyguitar0058]

What are you grounding to? A wire to what part of the guitar? My Strat is grounded to the bridge. Wire touches both bridge and alum tape. I also have L Sensors in my Strat so they're quieter anyways.

[@DevilAndSons]

If the pots are touching the tape then they are making contact and forming part of the circuit, and then there should be a wire from the pots to the bridge. I haven't used the L Sensors yet but I hear good things about them.

[@willswanderings6912]

I'm wondering if the hum would be even less if you paint the whole back side of the pickguard over the pickup cavities also.

[@DevilAndSons]

That would be a good test. Although of the pickguard makes contact with the guitar body but for the bits that don't and are like the roof of the cavities it could well help.

[@diegomendivil7101]

Fact 1: Shielding MAY reduce hum and interference, but it doesn’t eliminate it. Fact 2: You don’t need to cage in the electronics (Faraday cage) that is a myth. Fact 3: As long as the shielding covers a substacial area be it under the pickguard or cavity it must be grounded, that way it acts similar to an antenna and can send unwanted noise (be it small to) ground instead of the output. Fact: 4: Ground loops are also a myth for guitar circuits. Fact 5: The less guitar myths you believe, the more enjoyable your playing will be. 😜

[@DevilAndSons]

Absolutely. This whole Faraday cage thing does my head in. It's like the tonewood discussion.

[@Urneighborhoodnerd]

Great video! Just curious if you’re able to use different paint over the graphite paint and have it still work? I want to do something with the guitar where you can see something inside of it and am curious if I’d be able to paint over the paint with non-graphite paint and have it still shield the guitar

[@DevilAndSons]

I'm pretty certain you can, but in order to make the shielding connect to the ground I would add a wire from the back of a pot to the inside of the cavity with a screw holding it I'm place that penetrates into the shielding

[@DevilAndSons]

I show that in this video kzbin.info/www/bejne/ameui5mgo86fg68

[@keithseifert]

Do you think the glue on the tape works like insulation and prevents a good connection from bottom layer of tape to top overlapping tape?

[@DevilAndSons]

It absolutely does. Some tape has conductive glue. I sometimes fold a piece of tape length ways and tape it the lengthe of the shielded area to make contact with all the strips. I have a video showing that... I'll just find it and link it below.

[@DevilAndSons]

Here's that video, it's about 4 and a half minutes in. kzbin.info/www/bejne/ameui5mgo86fg68si=zPtWZ_TBcy8UvCRx

[@keithseifert]

@@DevilAndSons nice!

[@TeleCaster66]

I have 1 Strat and play it constantly. I know what this guitar sounds like, the sound got kind of sterile when I shielded just the control cavity. Ripped it out. Sure it made it less noisy (not that noisy to begin with) but at the cost of the tone. Been playing for 43yrs, not a newbie. It's funny how not 1 utube video mentions the sound difference yet just about every post on guitar forums tells you this.

[@DevilAndSons]

That's interesting. I've never notice that, I must do some tests now to compare. If it's not too noisy then I wouldn't suggest making changes, but perhaps the shielding wasn't done properly?

[@PatatoKeftes]

There should be NO DIFFERENCE in your tone after shielding your guitar. If there is nothing between your strings and pickups then the tone is unaffected, it's simple physics. The shielding does not connect to your "hot" wires therefore does not affect your signal. You probably shorted something that bled signal to ground. Or there was an existing signal short to pot or switch body that was not apparent due to the lack of shielding and therefore lack of path to ground, and found a way to bleed to ground after shielding the cavity. KZbin videos do not mention tone alteration when shielding because there is none. Shielding DOES NOT ALTER TONE in any fucking way....

[@DevilAndSons]

Well said!

[@andres.g]

Why didn't you ground the pickguard to the guitar in the first test?

[@DevilAndSons]

Without watching through it all again I seem to remember that I was working up to that, to see if it actually made a difference. Also if the pots are grounded and make contact with the shielding on the pickguard it is grounding it.

[@andres.g]

@@DevilAndSons On my Strat, the times the ground wire has been accidentally released sounds the same as the first example. Regards!

[@DevilAndSons]

In that case having the cavity insulated but overlapping to the top so it makes contact with the pickguard, and therefore the ground on the pots is sensible.

[@AcidMaster824]

This series is great! Learnt alot. These videos are well made n need more views!

[@DevilAndSons]

Thank you so much. I'm hoping this series will build the channel a bit and help with views.

[@mrofnocnon]

Great test, thanks.

[@DevilAndSons]

Thanks for watching and commenting

[@onewiththings]

Am I crazy, or did the insulation make it worse? I didn't hear any noise the first way round. Did you boost it for the comparisons? Other people say you just do around the pickups. You didn't test for that.

[@DevilAndSons]

Good point, i didn't go ahead and just do the pickup cavity. I didn't boost any sound. The sound may not be as good on the video as in real life but it definitely did make a difference to shield it. I have another shielding video coming up in a month or so, I have a new shielding paint to use and try.

[@Yury5576]

did you connect your insulation to the earth lug? You need to earth your insulation

[@DevilAndSons]

It's earthed by touching the pots, whose casings are grounded to the earth lug.

[@Yury5576]

@@DevilAndSons Touching will give you more unpredictable noises. Solder the shield to the ground lug or one of the pots. Make sure that the shielding is one continuous shield

[@DevilAndSons]

Why do you think that? Would you suggest isolating the pots using non-metal washers? When I use shielding paint I always have an extra wire screwed into the wood cavity through the shielding.

[@Yury5576]

@@DevilAndSons What you are trying to build is a version of a Faraday Cage which you are trying to shift to the groundSo your shield has to be shifted to the ground as a whole, preferably to a single ground (to eliminate induction) . The contact to the ground path has to be as good as possible which means you clean the surfaces properly to get rid of oxidation and then solder. Top of the pots touching the shield is not enough and can cause more harm then good. I am an electronics engineer, this is 101

[@DevilAndSons]

So do you suggest separating the pots from the shielding so they don't touch except the grounding wire you solder to them? Also, what are your thoughts on how to chain the pots together? In a row but not looped or spidered out from one pot?

[@Slamoth]

You cant really call it a shielding unless you connect all the shielding to the guitar ground connection. It needs to be like a faraday cage. I did it on my jackson and it is silent as a baby near the amp.

[@DevilAndSons]

Absolutely, connecting it up makes it much better, but I was surprised that it did still help not being connected.

[@polarbear7577]

Thanks for demo

[@DevilAndSons]

Thanks for watching and commenting

[@iridios6127]

It’s strange that in positions 2 and 4 the humm is not canceled.

[@DevilAndSons]

The pickups would have to be in reverse polarity. Also the closer they are (like on a humbuckerl the more similar their signal would be to cancel out.

[@iridios6127]

@@DevilAndSons I have a couple of guitars. In positions 2 and 4 there is zero hum, even without shielding.

[@DevilAndSons]

Interesting. I wonder what pickups they are using. Which guitars are they? I'd like to look into that.

[@iridios6127]

@@DevilAndSons Just a regular stratoids and tele-like ones.

[@DevilAndSons]

What make and model though?

[@FredGuits]

What area of the UK are you sir? Need a set up but just don’t want to mail my baby(ies)

[@DevilAndSons]

Hey. I'm in Brighton. Where are you?

[@FredGuits]

@@DevilAndSons ahhhh so Brighton Rocker.. I’m entrenched in London, Tottenham.🥹

[@DevilAndSons]

@@FredGuits What were you after?

[@FredGuits]

Hey.. I have a fender player tele and a 5 string squier bass that need intonating.. And also Fernandes strat that I want to bring back to life( new wiring, shielding, and bridge hardware) but your you tutorials are really good so maybe I’ll attempt that myself

[@DevilAndSons]

@FredGuits honestly, if they help you do it yourself then I've succeeded in my aim of both doing myself out of business and empower people. If you can follow my full set up video I would suggest give it a go. I'm happy to answer any questions and help if I can.

[@TylrVncnt]

“Insulation” means insulating electrically aka *not* electrically conductive, the opposite meaning that you were meaning IMO

[@DevilAndSons]

Yes. I totally confused myself when filming and of course meant shielding. Thanks for pointing it out.

[@Tapfool]

Good stuff, very informative!

[@DevilAndSons]

Cheers. I think I'm going to make some more videos like this where I test things out.

[@ahall3823]

How did you control the intensity of the EMI source?

[@DevilAndSons]

I'm not sure I know what you mean. I didn't have control over it exactly, I just reduced it with the shielding. Are you saying you want to be able to control how much you reduce it by?

[@ahall3823]

​@@DevilAndSons No, I'm saying that when there's a time difference between when you take the measurements, the intensity of the EMI source may have changed. The more likely explanation is that the shielding acts as a quasi antenna, and when it's connected to ground, you eliminate that amount of EMI. It's got very little to do with 'shielding'.

[@DevilAndSons]

@ahall3823 ah yes, that makes sense. I as I say, it's not a completely rigorous experiment but it does help show that it works in theory.

[@digitalchris6681]

Best is copper tape with conductive adhesive covered with a coat of graphite paint. The paint by itself has a resistance of around 200 ohms for a 1/2" strip 12" long, which is far too high (I measure a strip of copper tape at 0.07 ohms but higher - 3.5 ohms - if you use several strips on a cavity due to the adhesive. Combining copper with graphite on top in a cavity gives 1.2 ohms . Not the ideal zero but a reasonable practical value.

[@DevilAndSons]

That's interesting, thanks for sharing this info. Does the paint adhere to the tape OK?

[@digitalchris6681]

@@DevilAndSonsyes if applied immediately after taping, so no oxidation. In the defence industry we used silver/copper paint but this is £60 per tiny bottle (think nail varnish) so that's £120 per guitar. I never measured the resistance but if it's good enough for them military I guess it's near zero ohms.

[@DevilAndSons]

That sounds like a KZbin video! Using the most expensive shielding paint ever! Thanks again

[@GCKelloch]

Cool experiment, but define "amazing job". It sounds like there's ~3dB reduction in the upper-harmonics of the AC hum, which is to be expected. It may not be significant compared to the whole dynamic range, and may also reduce the same range in the pickup signal. The odd thing is that the adhesive side of Al tape isn't usually conductive. That shouldn't have made an improvement unless the eddy currents from Al dispersed some of the magnetic signal. I just use Al tape. The difference with the carbon paint is negligible.

[@DevilAndSons]

I like the ease of the carbon paint. Sometimes I fold a piece of the aluminum tape and lie it across the whole cavity linking the pieces. I guess amazing in this case meant it got rid of a buzz really easily.

[@GCKelloch]

@@DevilAndSons Define "got ride of". What I'm saying is how much attenuation is there?

[@DevilAndSons]

Do you think there would be a noticeable effect with this amount of shielding? I doubt it. Compare it to the guitar cables you'll be using, surely this is negligible in comparison?

[@CyberDeimus]

Pretty sure you need to use the slug repellent copper tape. Almost every TIN foil hat wearing conspiracy theorist will tell you ALUMINIUM foil don’t stop anything. 😉

[@DevilAndSons]

Did you watch the video? The aluminium works really well.

[@HappyHermitt]

I used Elk brand copper tape on a Squier strat and it works beautifully. Zero noise. Absolutely 100% better. I didn't expect it to work as good as it does.

[@DevilAndSons]

Great stuff.

[@grabslide]

It improves it slightly I've put thicker copper plate and connected pickup straight to shielded cable, when i wrapped pickup(p bass) on thin copper foil it did'nt help maybe even got worse, i wonder how long does the paint last

[@playpm]

Before I finish this video, where did you get the T-shirt? I AM a mediocre guitarist and I need one 😂

[@DevilAndSons]

I make them, you can buy them from devilandsons.guitars/shop

[@mikesharpsongs]

Any links for the paint?

[@DevilAndSons]

I've actually started using rustin's shielding paint, it's not made specifically for a guitar but seems good.

[@BlackLotus1220]

damn i really need to shield my guitar, I get too much noise when using high gain

[@DevilAndSons]

When I first shielded a guitar I was surprised what a difference it makes, and then wondered why companies don't do a better job of it.

[@johntchb]

Do different pick ups ie single, humbuckers and p90's change the need for shielding,i.e. do some require it more than others.happy noodling

[@DevilAndSons]

Yes, but in fact there are lots of things to take into account. Some wire is shielded anyway, and some pots are just better built than others. But generally humbuckers are designed in a way that eliminates the hum, so you may not notice any difference with shielding. Most humbuckers are going to have a metal base that works like shielding would, and that's wired into the ground loop, and some p90s and single coils may have metal bases too but that's not as common (at least with single coil, I'm notb100% sure with p90s).my thoughts are you may as well shield unless you have something that may interfere with shielding, for example I'm installing a piezo pickup and preamp that recommends you don't shield your guitar as the preamp may pickup interference from that.I hope that helps. Happy strumming.

[@johntchb]

@@DevilAndSons cheers for your advice, l think painting it with carbonised paints the way to go.

[@DevilAndSons]

My pleasure, thanks for watching.

[@RainRedMusic]

This was very interesting 🧐 and I learned a lot.

[@DevilAndSons]

Great, I really enjoyed making this one. I'm glad it was interesting to other people.

[@philchekalin]

Strings make so much difference

[@DevilAndSons]

Have you found some particularly bad strings for conducting? I'm assuming if the sound is there without the strings it will either be the same or worse with them.

[@freakbiker]

I haven't tried the paint yet but copper tape did nothing, I covered everything even overlapped every lip around instead of just small spots as you did. My conclusion is at low volumes and transistor amps may sound ok, but turn it up and using a tube amp, not worth the effort.

[@DevilAndSons]

Interesting. I wonder if it's the copper or simply as you say, the amp combo. Did you have any areas that have tape on them that aren't grounded (I.e linked back to the main cavity and touching the pots which are grounded or with a wire directly linking the cavity to the ground)? It's possible the copper in cavity that isn't grounded may actually be amplifying the sound.

[@freakbiker]

@@DevilAndSons I can't imagine that would happen, I don't use nylon or rubber washers so they should be grounded. Ground to the springs as well.

[@DevilAndSons]

I am very surprised then. Is the hum bad?

[@freakbiker]

@@DevilAndSons No worse than without, Tex Mex pickups

[@DevilAndSons]

How frustrating.

[@DragonofLimerick]

My guess is Crimson guitars. I use copper tape and shielding paint. Preferring the paint for the cavities because the cavities don't tend to be none too smooth and the paint can get into all the crevices nicely, with the tape on the back of the compartment covers.

[@DevilAndSons]

I should have tried that combo, it does make sense to tape the back of the covers. The video at the end of the month will reveal the logos (but you're doing very well).

[@DevilAndSons]

I hear a lot of people saying they prefer copper.

[@DevilAndSons]

I think you're right, the shielding paint you can buy must be of varying quality (and price). I bought a cheap make online to test and it was actually quite good so I'm sure making your own must be at least that good.

[@jameshalbert181]

Anyone that would put a jack in that location shouldn’t be trusted with anything guitar tech related. I do dig your ink though . I’ve got an idea somebody needs to develop conductive tattoo ink and a needle with a ground wire that can connect to your guitar. It might fix lots of problems.

[@DevilAndSons]

Ha, physical grounding. I put my output jack in all sorts of places!

[@BLACKSYNTH]

Shielding the cavity is just a rubbish way of making an antenna to capture the EMF. if you just shielded the pickguard and grounded that it would be much better than what you did here as it covers a larger surface area and captures to bleed EF to ground. now, if you shielded the pickguard and grounded it THEN did the cavity's and comnpared the two, you would find it made little difference as shielding the pickguard captures a greater percentage after that shielding the cavites is just capturing a miniscule amount of whats left, also just seen you comment below about faraday cage. that does not apply to guitar as you cannot create a closed system and unless it is closed it does nothing. there is no such thing as a faraday cage half working. a faraday cage with a hole in it EG. the pickups is not a faraday cage and does nothing.

[@DevilAndSons]

You are definitely right about the Faraday cage, people talk about that all the time but the pickups will always be outside it surely. I'm not sure about the rest of what you said as shielding the cavity does make an auidable difference. I can't see how just shielding half the cavity (the pickguard) is better than shielding it all.

[@BLACKSYNTH]

@@DevilAndSons ahh right well basically by shielding, your not covering anything or blocking as such. As the only Ef your guitar can pick up if from the pickups, and you cannot cover them so Your making an antenna so the EF gets absorbed more by that and sent to ground rather than the pickups. As for the most part the pickguard is usually large enough to make an antenna that by that point there’s not much left for the small cavity antennas to capture as the pickguard has already scooped up. With no shielding on the pickguard yeah you will hear a difference by just shielding the small cavities. If you look at a band say autolux years ago they covered their whole guitar body and bass body’s in shielding on the front (as they use a ton of effects) making a huge antenna around the pickups and sending it to ground. Has nothing to do with stopping ef hitting the controls or switches that would be impossible without at least an inch thick of copper surrounding it.

[@DevilAndSons]

Very interesting. Sounds like some more testing is needed. But, do you think shielding everything is detrimental or just overkill?

[@BLACKSYNTH]

@@DevilAndSons depends. Shielding all the cavities on some guitars may result in shorting connections immediately or down the line Especially if it peels up. I think the pick guard is sufficiently large size. I know a few people who have stuck copper tape all in the control cavities and then one pickup won’t work or the tone does nothing. I’d say it’s not worth it unless say your guitar has no pickguard.

[@DevilAndSons]

Yes, that is obviously a problem if not done properly. Thanks for input and info.

[@Scrimjer]

I thought you were drinking the paint....also you need a ground to your shielding tape...

[@DevilAndSons]

Ha, I have picked up my paint brush mug before, and dipped my paint brush in my tea, but thankfully never drunk this stuff. Yep, must ground it for sure.

[@DevilAndSons]

Here's my full video on how to shield kzbin.info/www/bejne/ameui5mgo86fg68si=vkoBusycVAa5Gd3d

[@eduardoamayo]

One thing bugs me. When you touch it the hum returns. In a real situation it would be a ground link between electronics, shielding and the strings, meaning you would be always touching it when playing. As you can see in any faraday cage demonstration, if you touch from outside, it doesn't work. My experience is: shielding doesn't work in real life. Twisting pickup wires for phase canselation, humbuckers and dummy coils work great, but shielding is placebo.

[@DevilAndSons]

Interesting comment. I have definitely noticed the difference with good shielding.

[@DevilAndSons]

Dummy coils sounds interesting- I'll have to look into that. Thanks.

[@eduardoamayo]

@@DevilAndSons definitely it won't hurt shielding (except for vintage guitar with weak magnets... Seth Lover explained why talking about his choice of materials for paf covers). Except for my 71 Dan Armstrong all my guitars are shielded and what I can tell is that as soon as I touch the strings my marshall starts playing FM radio if the outlet socket isn't property grounded. xD

[@DevilAndSons]

Interesting. I think the playing the radio is to do with the grounding on the amp.

[@BLACKSYNTH]

Shielding is for EF radiation like when you guitar is too close to other equipment/lights. not 50/60hz hum. pickguard & cavity shielding have absoloutly nadda to do with AC hum.

[@HGXAF]

Tnx m8

[@DevilAndSons]

Cheers.

[@catpmetcalf8596]

comprehensive

[@DevilAndSons]

Thanks, I am going to start guessing what your responses will be.

[@unclejoeoakland]

I feel like this is something everyone learns in prison...

[@DevilAndSons]

I think I'm missing something. Is that where you learnt it?

[@unclejoeoakland]

@@DevilAndSons not me but friends... No prejudice, I know a couple rough fellows but they concur that cavity shielding is de rigeur.

[@DevilAndSons]

Well, that is very interesting.

[@Dreamdancer11]

i shield my guitars with noiseless pickups...

[@DevilAndSons]

That's a good solution. Any particular brand and models you recommend?

[@Dreamdancer11]

@@DevilAndSons Either the dimarzio areas or practically any kinman set.....coupled with shielded wire for the input jack its all i need for a dead quiet guitar.

[@DevilAndSons]

Shielded wire makes such a difference I'll look into Kinman, I don't know their products.

[@Dreamdancer11]

@@DevilAndSons They are a bit pricey but pretty much the best strat pickup sets out there......all the tone, no noise...i mean i tried everything,shielding paints,copper and aluminum tapes,hand made dummy coils,fancy uber expensive dummy coil like systems like the ilitch one and in the end a set of high quality noiseless pickups can do anything with zero noise not just reduced noise......even regular humbuckers are noisier than these things....

[@DevilAndSons]

Well that sounds amazing.

[@DevilAndSons]

Check out the A-Z playlist for more: kzbin.info/aero/PLH6eWzz4skg7vJ3sprFqGLUXTftmlHUxs

[@SenseiMiku]

I can't believe that you consistently called the metalic tape "insulation". Insulation by definition does not conduct electricity... only SHIELDING conducts. By the way, if the tape does not have an adhesive that also conducts electricity, (if it was not designed to be used specifically for SHIELDING) then your final effort will be inconsistent and merely a patchwork of isolated metal islands.

[@DevilAndSons]

Yes, i can't believe it either. It's annoying and I corrected it in other videos. Anyway, you are right about the glue, that's why I'm not a fan of tape.

[@bluwng]

Two things that don’t make sense, 1. The noise you are shielding is 50hz and 60hz depends on the country, this is from your line the the ambient, not in air. 2. Shielding is suppose to create a Faraday Cage of what it enclosed and protect from RF interference, but your strings and pickups are outside of the shielding and these are the sources that pickup and amplify any RF signals. You are better of using twisted pairs in your wiring that scientifically eliminates noise….noise signals will cancel each other out.

[@DevilAndSons]

The Faraday cage is definitely a thing, hence why the more that is linked up the better, but you can't (as you say) put a cage around the whole thing. Technically the strings aren't oart of the circuit although they are grounded, the pickups work by the magnetic interference from the strings. Shielding the wires also helps, hence why most pickups will have shielded wires, and most humbuckers will have a metal plate underneath that is grounded too.

[@bluwng]

@@DevilAndSons think of the signal path, consider the signal wire and the wires a pipe. All shielding outside the wire is external to the pipe. Your signal is the water in the pipe once your strings pickup RF it is duplicated in the magnetic field which will then go from your pickups to wires to your out and out to its final processing and output.

[@DevilAndSons]

I'm a bit lost as to your point, sorry. Are you saying there's no point shielding as you can't contain it all?

[@bluwng]

@@DevilAndSons point is all the shielding in the world won’t contain RF noise also 60 cycle noise is in the line not in the ambient.

[@DevilAndSons]

@@bluwng why does it make a difference then?

[@wayne6777]

inSHOElaSHUN

[@DevilAndSons]

Duh. I of course mean shEELDin

[@immanuelsiregar7395]

12:36

[@DevilAndSons]

That's my favourite part, I like the way I have colour coded the writing.

[@TylrVncnt]

Dig the video overall great job, just *please* for the love of GOD don’t continue to take huge gulps while the mic is hot...!! No one wants to hear that! Cheers

[@DevilAndSons]

ha. Gulp! I hadn't noticed that! Gulp.

[@DevilAndSons]

Here's a more recent video outlining how I shield cavities with paint kzbin.info/www/bejne/ameui5mgo86fg68

[@keithklassen5320]

This video could have been 2min long.

[@DevilAndSons]

To be fair all my videos could be 1 minute long if all I did was tell people some facts without demonstrations etc, thankfully it's easy to jump around and fast forward videos.

[@lazyboyrider4607]

I thoI would like to watch this video but can’t stand the dizzy feeling I get from those zebra tattoos. Yikes

[@DevilAndSons]

Imagine how I feel looking at them every day!

[@artwdeetoo]

Why do you call yourselves devils if you were made by God Almighty? The Lord rebuke these evil names.... Joe.

[@DevilAndSons]

Robert Johnson sold his soul to the Devil to be able to play the blues, you can sell yoirs to have the design of your dreams. Take the step and make it real. Plus I wasn't actually made by God Almighty, it was a couple of people called Roz and Barrie.

[@CloudfeatherRusticWorks]

I thought the shielding had to be grounded to the pots/wiring to work as intended?

[@DevilAndSons]

What was interesting about this experiment was that it made a difference regardless, but it is definitely better when it does touch. I have a video that goes into details about ways to ensure they are linked. I'll post it below.

[@DevilAndSons]

kzbin.info/www/bejne/ameui5mgo86fg68