do you need to ground a guitar bridge
The possibility of a serious electrical shock exists if the bridge ground is faulty and the player touches a microphone or piece of gear attached to a different signal … Heck, communism works in theory. Remove the strings again. Check your inbox for an email for me—you'll need to confirm your subscription there. From outside, I could just probe the bushing and that was fine too. Soldering a wire to the tremolo claw is a more 'traditional' way to ground a Strat's strings, This article written by Gerry Hayes and first published at hazeguitars.com, Tagged: wiring, electronics, ground, strat, tremolo, hum. In an electric guitar or bass, it's usually necessary to 'ground' the strings. Download Truss Rods Made Easy for free. You see, a human-being actually makes a pretty good antenna. Whenever you're mixing sound, whether in a studio or a live environment, grounding the mixer is among the most fundamental and easy things you must do. The pot should be grounded to the jack but you still need to ground the strings one way or the other. It's gotta go. Hence, you need not ground the bridge, if it is going to be an inconvenience. Fender guitars can be more problematic. That means there’s a clear path with no resistance from strings to ground. When it's properly grounded, you can touch the strings of your guitar and you'll usually hear the background hiss reduce. It's the right thing to do. All good. 10/10 for grounding effectiveness. Plugging in reveals a much quieter guitar. I pulled out my multi meter again and, sure enough there was no ‘continuity’ between the strings and ground (that ‘I’ on the meter indicates there is—for all intents and purposes—Infinite resistance). Actually, it’s the other way around. Furthermore, double-check to make sure there are no stray ground wires wedged under the Saddle Plate. Inside the guitar, there’s usually a wire from the bridge or tailpiece that runs to ground. Don't miss If your bridge pickup’s screws thread into the steel plate like ours do, then that should be enough to ground out your strings, since the steel plate connects to ground. When you touch the strings (which you would normally do when you’re playing), you ground yourself through the guitar’s wiring and so you cease being a big meat-antenna, picking up interference, which is then picked up by your pickups. I fished in a new wire, stripped it back so it contacted the metal of the stud-bushing and reinserted the bushing. I could see a wire from the back of a pot (common ground point) disappearing into a hole that pointed towards the guitar tailpiece stud. It will have the benefit of not affecting the bridge movement. Yay. What the heck? By this, I mean that all the strings should have a path to ground — a wire that connects them to a ground point inside the instrument. Usually that ground point will be the back of a pot or the sleeve of the output jack. Check out these other great articles…, Haze Guitars, 54 Rossberry Avenue, Lucan, Ireland, Neck Resets - Beginning to remove the neck, Free Social Distancing for Musicians Sign, Repairing a damaged acoustic guitar bridge plate, Straightening a bowed neck: Correction and Reassembly, Remove Blue Pencil Lines in Affinity Photo, Straightening a bowed neck: Truss Rod Operation, Straightening a bowed neck (with some complications). It might take a few minutes to come through so, don't worry if it's not there immediately. Drilling the ground wire hole is is harder on some guitars than others but I've never found a guitar that couldn't be grounded. Have to run a new ground wire to that stud. A quick look inside revealed what seemed to be the problem (more in a minute). Yes. Usually that ground point will be the back of a pot or the sleeve of the output jack. Gibson guitars are more resilient to this situation because of the more metalized pick up. I was all set to treat myself to a nice cup of tea. Jury-rigging like this can certainly get you out of a hole if its needed. What’s going on? There was a nasty hum that didn’t quieten down when I touched the strings. Tagged: electronics, ground, continuity, multimeter, resistance, hum, buzz, noise, powder coating, hardware, guitar, bridge. The coating is cleared and bare metal is exposed. Without a good connection, there is no ‘signal path’ from the strings to ground. 7 February 2017. This particular guitar has a black powder-coating finish on the metal hardware. It's not that scary. Removing the stud bushing from the body isn't too much hassle (but be careful if you ever have to do this yourself). It's not that scary. The bridges of electric guitars and basses need to be grounded for a couple of really good reasons: The instrument will hum, usually at 60Hz, and this humming will change or go away when the player touches the strings or bridge. Bad shocks most often happen because your amp OR the PA is grounded improperly and you touch a metal microphone with one hand and your strings/bridge with the other. This is generally a good indicator that there’s grounding problem. Working in the parts that won’t show, I remove some of the powder coating. I'd go for that. It might take a few minutes to come through so, don't worry if it's not there immediately. This includes the strings. Perfect continuity between the output jack’s ground and the pot with the bridge ground wire. However, in order to comply with privacy regulations, I also need you to provide consent to store and process the information you've entered. Check your inbox for an email for me—you'll need to confirm your subscription there. I use sandpaper or just scrape if it’s easier. Cigar Box Guitar craftsman Glenn Watt shows you how to ground your pickup to reduce humming, even if you’re not using a metal bridge! It does the job of connecting the bridge to the grounded metal plate around the output jack. you can "run the wire to the jack"- but the origin of the wire has to be the bridge, you have to ground that or you will have a horribly noisy guitar N Senior Member The string-ground is a very important part of an electric instrument and a good spot to start if you’re troubleshooting strange hum problems. String things up again and check with the meter… 0.00Ω. Inside the guitar, there’s usually a wire from the bridge or tailpiece that runs to ground. Download Truss Rods Made Easy for free. A quick primer/reminder: The ground wires in a guitar help to ‘shield’ it from unwanted interference from the environment. The exposed metal parts of a guitar or bass are generally all wired to a common point. Also, if the pup cavity it shielded (copper or aluminum foil/tape/paint) that needs to be connected to the ground as well. What I’m trying to do is to get a sound, ‘metal-to-metal’ connection for the bushing, stud, tailpiece and strings. This means that somewhere inside the guitar, we’ve got a disconnected ground wire—if everything were working properly, there would be a signal path from the strings to the ground of the output jack. For something a little more discreet, running a wire into the tremolo cavity and soldering it to the trem-spring will also work. By this, I mean that all the strings should have a path to ground — a wire that connects them to a ground point inside the instrument. Do Time for some ‘scraping’. You are signing up for my email newsletter so the understanding that you'll receive emails is pretty explicit. Then, I soldered the other end to the ground point on the back of the pot. You probably mean the connection to the bridge, which is soldered to the trem sping claw in the rear cavity. No resistance means a perfect path to ground from the strings. And the guitar is picking some of it up from you. Because each of the strings touches the bridge or tailpiece, each one gets grounded. A Strat is a bit more complicated but here's how not to do it. The only time you can get away with not running a ground wire to the bridge is using a pickup with a grounded base plate that mounts directly to the bridge. Most of that EMI that you’re absorbing gets sent off to ground through the guitar and it becomes quieter as a result. If the bridge is grounded to the jack, when you touch the strings, the voltage that is picked up by the body is shunted away to local guitar ground and the interference is much reduced. A hand-drawn, illustrated guide to setting up your own Strat. I want to see some shiny metal on the threads of the stud and the internal ‘post’ that holds the tailpiece. However it was put on the guitar for a reason which is to reduce the amount of unwanted hum or noise produced by the guitar.
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