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Starting a New Project (PRS ish guitar)

posted Sep 23, 2014 19:52:45 by Sandman21dan
Hi!

I'm just starting kind of a Chibson project.

First off, this is not a proper Chibson as I didn't import it from China (not myself at least), this is actually an eBay (UK) bought Benson.

They're very very cheap, basically the cheapest on eBay for a new guitar.


I suspect this is a Chibsion due to inspection of other guitars you guys have imported and it has exactly the same pros an cons.

First off it looks great!



I'm missing some pictures I don't have on this PC at the moment. Will upload them later on.

Continuing on, as any Chibson, the fretwork is terrible! and the hum is unbearable.




And this is how those frets sound

https://soundcloud.com/daniel-p-rez-67/fretting


Now... I was kind of expecting this when buying this guitar and expected it to have as a project, only too bad that I'm new to this country and this is the only guitar I own at the moment.


Now on to work!

I have already gutted it and about to begin shielding while the rest of my fretting tools ship.

Question / opinion on shielding:

Do you guys shield the bridge spring cavity?
I've seen some do it and some not.

In case bridge spring cavity is not clear, I mean the cavity on the back of the guitar where you string tremolo bridges through and the main solder cable is usually attached.


Some last pictures of the gutted guitar:

(you can even see how scared the guitar is)



Thanks for your responses, wish me luck!

Bye

Update: Can I get some advice on wiring cable? I'm already getting all electronics (pots et...) new (except pickups sadly) but I have no cable, wouldn't want to reuse the same but not really sure what kind of cable to use, even read somewhere to chop an USB cable since it has 4 cores plus bare.
[Last edited Sep 23, 2014 22:22:15]
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9 replies
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Sandman21dan said Sep 23, 2014 23:27:26
Finished shielding!


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drew said Sep 24, 2014 01:53:06
You can use any kind of thin, general purpose hook-up wire you can get your hands on - solid core or stranded, PVC or cloth or Teflon insulation. The electrons don't care. Just make good solder joints at both ends and it will be fine.

One problem you my have if you try to use USB cable is stripping the insulation off the ends of the very thin individual strands without damaging the conductor.
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sjcrowe6 said Sep 24, 2014 03:43:32
Gibson recently announced that they are switching from 28 awg to 26 awg wire on all of their USA made guitars. I wouldn't recommend going cheap on the wire.
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angev2 said Sep 24, 2014 09:05:22
dont forget to ground the shields to a common point to avoid earth loops. Also line the inside of the tone control cover and make sure it extends far enough touching the rest of the shield cavity.

I use hookup wire off an old PC power supply. There's a few colors to choose from - is the right gauge and has a good quality strand.

As for the tremolo cavity, Ive never seen one shielded. As there are no electronics in there, i doubt it's required. Just make sure you have the ground wire attached to the spring claw to ground the bridge, strings and tuners.
"This tasteless cover is a good indication of the lack of musical invention within. The musical growth of this band cannot even be charted. They are treading water in a sea of retarded sexuality and bad poetry." - Marty DiBergi
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Sandman21dan said Sep 24, 2014 17:30:13
Thank you for your input, will surely find cables from a PSU, still waiting for my fret rocker, so I can do some fret work.

dont forget to ground the shields to a common point to avoid earth loops. Also line the inside of the tone control cover and make sure it extends far enough touching the rest of the shield cavity.


Sorry, not sure what you mean by all this:

Ground the shields to a common point makes sense of course, is there any traditional spot to do this? You mean doing this by actually soldering a cable from one place in the shield to a ground point in the circuit?

Also, not sure by what you mean by inside of the tone control, I guess that you mean making sure the Pots outer body makes proper contact with the shielding?


Thank you all!
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angev2 said Oct 01, 2014 02:27:33
Make sure the shields are all connected to each other by virtue of the pickup, switch or pot body. Otherwise they will act like antennas. Use your multimeter set to a pretty low OHM range.

"This tasteless cover is a good indication of the lack of musical invention within. The musical growth of this band cannot even be charted. They are treading water in a sea of retarded sexuality and bad poetry." - Marty DiBergi
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Sandman21dan said Oct 02, 2014 16:40:24
Hello, I finished my project, will add some pics later.

The action is incredible now!, it was so high from the store, and I got used to play it like that for some months.

I still have a horrible hum issue, there could be some factors into this.

I could try to make better connection in between shields, also I don't have a proper guitar cable at the moment, (soon to arrive) and I've been using a stereo headphone cable and adaptors, all of those contribute tu the hum.

If after the cable arrives no hum is reduced, seems like I'll have to re do some of the electronics.
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Sandman21dan said Oct 03, 2014 22:20:04
Cable arrived, not a single noise!

Still I can't believe I have such a good guitar for the price, plus a fun project!

Will UL some Pics and Recordings soon!
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Sandman21dan said Oct 05, 2014 18:54:19
Hello!

So here are the final Pictures (Obviously no big visual differences other than string action and shiny Frets).








Now some quick rough recordings I just did:

Clean Sound
Bit of Overdrive
Lot of Distortion


Thanks for all of your help!

Will surely post back when I decide to order something from China

Cheers!
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