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Philadelphia bridge conversion.

posted Apr 23, 2014 12:05:53 by GsxJones
I ordered a set of bridge post's and an ABR-1 bridge from Phili luthier store in the US,which came today in the post.
The new bridge post's are a really really slack fit into the ABR-1 bridge. Not good.
The ABR-1 came with it's own bridge posts and they are also mega slack and sloppy.
I need to think what to do next?
I know once the string tension is holding the bridge down it shouldnt move,but the difference in size's of the holes and bridge post's is massive.
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28 replies
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HtesJoseph said Jun 16, 2014 01:00:04
did some back and forth with philly luthier supply,he says they wont have anything that will work,as the recent Chinese LP guitars use some weird size stuff that will not work with anything else,didnt seem to eager to help me,I went out and got a decent mesureing device and will note some stuff after dinner
My band page on Facebook, The Damn Hippies. Like it if you like it. (*};=/ https://www.facebook.com/TheDamnHippies
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HtesJoseph said Jun 16, 2014 01:01:43
don't know why that pic is so big,took it with an iphone,will try to resize,apologies
My band page on Facebook, The Damn Hippies. Like it if you like it. (*};=/ https://www.facebook.com/TheDamnHippies
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MichaelWamback said Jun 16, 2014 14:46:43
Frankly, I think the guy is making excuses. Let's be honest, it's his bridge posts and his ABR-1, so they should be compatible. I could see if the issue was the spacing of the posts, that might be a Chibson thing. But if the posts are centered an the issue is that the posts are too small (or the bridge holes too big) that sounds like his fault.

The two most important things to remember in life: "The only time it's acceptable to work with amateurs is if you are making porn." "If you want to work with clowns, join a circus."
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HtesJoseph said Jun 16, 2014 21:32:51
who,the guy at philly lutheir ? this is the second time someone from there was WAY less than helpful,I left an email with my rep from sweetwater,AWSOME customer service,hes like,"go home,take some pictures of the guitar,get whatever mesurements you can,well ship you out a few different pieces,you keep what works,send back what don't" , really impressive attention to detail,he says,if there is still a problem,for me to ship him the bridge and he will give me options of what will fit back on my guitar ,these cats know Im into these Chinese guitars so they prolly just see dollsr signs,knowing that most of the hardware that comes on them is not the greatest...
My band page on Facebook, The Damn Hippies. Like it if you like it. (*};=/ https://www.facebook.com/TheDamnHippies
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MichaelWamback said Jun 17, 2014 04:58:55
Sweetwater, in my opinion, is the benchmark of customer service. They actually assign you a specific rep who handles all your questions personally. Those guys rock. Just wish I could afford to order more gear form them.
The two most important things to remember in life: "The only time it's acceptable to work with amateurs is if you are making porn." "If you want to work with clowns, join a circus."
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HtesJoseph said Jun 17, 2014 20:48:01
my rep got right back to me after I sent him the pics,and what I was interested in,said he checked with his guys and there was NOTHING he could do to help me,all he has access to is usa stuff and my stuff is all routed imperial or some shit,said the bridge,tailpeice,tuners,even pots ,caps switches,jack,EVERYTHING,was very strange mesurements and he couldn't help me,then procceded to try to sell me an amp,nice as pie,he directed me to stew mac,or all parts,I know that,mabey the bridges,tailpeices,and mabey even tuners on these things are a bit strange,but pots and caps,pickup switches ,and jacks,gotta be universal,this aint my week as far as luck with guitars go,I bought a verneir caliper,(wanted a micrometer) and got the most important mesurements,center to center of posts ,what looks like on my caliper 7.4,,and the diameter of the top part of the posts (where they go into the bridge)00.6,i think that's how that's written,yeah,6 tenths of an inch, and E to E is 5.2,I figure with those 3 mesurments I should be able to find something.........,what a week,and its not even Wednesday
My band page on Facebook, The Damn Hippies. Like it if you like it. (*};=/ https://www.facebook.com/TheDamnHippies
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vambostrausser said Jun 17, 2014 21:53:43
To HtesJoseph
U.S.A stuff as you put it, is Imperial The measurements you have given are in METRIC CHIBSONS ARE METRIC.center to center should be 74mm which is the standard size. 6mm will be the size of the post and 52mm will be the string spacing.
I do not know what parts you want to renew but these parts will fit.
GOTOH/TONEPROS METRIC BRIDGE GOTOH/TONEPRO METRIC TAILPIECE ALSO FITS
YOU NEED SHORT SHAFT POTS
BOURNS POTS ARE METRIC ,CTS ARE IMPERIAL AND NEED A VERY MINOR ENLARGEMENT TO THE HOLE
SWICHCRAFT SWITCH WILL ALSO NEED A MINOR ENLARGEMENT AS IT IS IMPERIAL (USE THE SHORT VERSION)
SWITCHCRAFT JACK SHOULD FIT WITH NO PROBLEM BUT IS IMPERIAL
TUNER HOLES ARE ALL USUALLY 10mm but it is advisable to check the thickness of the headstock as some people have reported having problems changing tuners and the replacement tuner shaft not being long enough.
There is no such thing as Imperial/metric caps
ALL THESE PARTS ARE AVAILABLE AT MANY MANY PARTS STORES IN THE U.S.A AND EBAY SO YOU SHOULD HAVE NO PROBLEM FINDING ANYTHING
OTHER MAKES OF PARTS ARE AVAILABLE
WHEN YOU HAVE FINISHED YOUR PROJECT,PLEASE SEND YOUR METRIC RULER TO SWEETWATER AS THEY OBVIOUSLY DON'T KNOW HOW TO USE ONE YET!!!!
[Last edited Jun 18, 2014 04:37:07]
THE CUSTOMER IS ALWAYS RIGHT,THE GIRL IS MUCH TOO YOUNG TO KNOW THE DIFFERENCE
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MichaelWamback said Jun 18, 2014 16:03:12
I've had jacks where a wire will come unsoldered, but I've never had one "fail". They are such a basic construction that I don't think they should ever need to be replaced, unless they are completely worn out from age. Just throwing money away, in my opinion.

The pots on most of these Chibsons will work fine, but I'm just concerned about long-term reliability with them. That's why I usually swap them out. Bourns or CTS are the best, and as Vam says, you will probably have to enlarge the holes a bit. Just roll up some reasonably coarse sandpaper and work it up and down inside the holes for a bit. Keep test fitting until the pot slips in. Very safe to do, and won't hurt your finish at all. No stress on the guitar with that method, so nothing will crack. With Bourns, your Chibson knobs should fit. With CTS, you will need USA spec knobs.

Vam is also correct that the 10mm tuner holes are fairly common, but not always. So yes, you should check them. If the holes are too small for your tuner, you can ream them out. I would strongly recommend purchasing a step reamer (called a prop reamer on ebay) to do the job. A tapered reamer cuts a tapered hole, which is not ideal for tuners. A step reamer will cut a perfect cylinder, and they are available in both metric and imperial sizes. (You might want to drill a couple of holes in a piece of scrap wood and then practice enlarging them with the reamer, just to get a feel for the tool before you turn it loose on your neck.)

Switchcraft makes really nice switches, but the "Gibson style" switches they use in most Chibsons these days are essentially smaller versions of the Switchcraft design, and very reliable. There is really no need to rush to change them, in my opinion.

So, if your switch looks like this:



Then the chances are it will be fine.

If your switch looks like this:



Then it's crap and should be replaced with something more reliable.

When upgrading to Switchcraft switches, be aware that they are much larger than the switches that are already in the guitar. At times, this can cause issues depending on how the guitar was routed. You will want to test fit the switches first. If you try and bend the prongs on the Switchcraft switch, be careful. I've had occasion to have them snap off, due to the metal being brittle. And you hate to throw away a $15 switch. It's better to sand away a bit of the wood to make the switch fit if possible. This is usually not an issue on SG's, but I've run into it on Asian LP's.

And a Gotoh/Tonepros bridge and tailpiece should fit (metric) and they are excellent quality. You can even get Tonepros pre-notched.
The two most important things to remember in life: "The only time it's acceptable to work with amateurs is if you are making porn." "If you want to work with clowns, join a circus."
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HtesJoseph said Jun 18, 2014 16:25:53
@ vamboser , that's it, those are all the measurements, that post should be a sticky, just an immediate place to turn to see EXACTLY the parts to chose from that will fit on these china guitars, thanks
My band page on Facebook, The Damn Hippies. Like it if you like it. (*};=/ https://www.facebook.com/TheDamnHippies
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MichaelWamback said Jun 19, 2014 00:47:07
I think most of us are aware that Tonepros/Gotoh metric bridges are a drop on replacement for Chibsons. Not sure it's a major revelation.
The two most important things to remember in life: "The only time it's acceptable to work with amateurs is if you are making porn." "If you want to work with clowns, join a circus."
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58yeah said Jul 03, 2014 09:43:04
Hi guys,

Bit confused - hopefully you folk can put me straight. Would this Nashville bridge from Philly screw straight into a Chibson?

http://www.philadelphialuthiertools.com/bridge-and-tailpieces/tune-o-matic-nashville-bridge-chrome-metric/
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vambostrausser said Jul 03, 2014 10:53:11
To 58yeah
If you read the product description it says for U.S.A Gibson,go for the GOTOH METRIC which is a direct fit,but use all the bushes and studs that come with it.If you choose the one you have linked then you will have to fill and re-drill the bushes.
THE CUSTOMER IS ALWAYS RIGHT,THE GIRL IS MUCH TOO YOUNG TO KNOW THE DIFFERENCE
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58yeah said Jul 03, 2014 10:58:18
Thanks for clearing that up vambostrausser. Much appreciated.
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