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Showing posts with label p90. Show all posts
Showing posts with label p90. Show all posts

Sunday, September 4, 2011

Epiphone Les Paul: a Mod Story

My Les Paul hasn't seen much action since I bought it. A cheap guitar that I never had professionally setup.
Playing it was like fighting it. The action was all wrong, the intonation was impossible and the neck was bowed.
I hadn't had the confidence to have a crack at it myself as getting information from the net isn't always reliable.
A couple of months ago I bought a book on setting up guitars. It explained clearly and with pictures what needed to be done. Also a few tools that were recommended that I hadn't considered.
One of them being an 18" straight edge. I'd looked around online and they weren't cheap.
I wasn't about to spend $40 on what is essentially an 18" ruler.

From one of my other projects, I had some leftover U shaped aluminium rail, which was a little longer than needed. After testing how straight it was against a known surface, I trimmed the excess and set to work on the Les Paul.

I loosened it off before tightening, using the DIY straight edge to ensure that I was on track.
Gradually tightening the truss rod and checking with the straight edge, I could see that the bow of the neck was becoming less pronounced. At each adjustment I'd play each string along the neck and double checking the trouble spots that I'd known about from before.

Pretty quickly it was obvious that the playability was improving. I'd adjusted the bridge for a fairly low action, so when I hit the strings hard there's a bit of buzz on the neck, but it's not audible through the pickups. I need the low action on this guitar as the neck is quite fat and I have fairly small hands.

The next thing that needed attention was the intonation. I'd had a lot of trouble with intonation on this guitar, to the point where the saddles would not travel far enough in either direction to compensate. Some of this was no doubt due to the action and lack of setup, but it was also a common problem with the cheap bridge used on a lot of Epiphone guitars. I'd added a Bigsby recently and figured that having a roller bridge wouldn't hurt any, so I picked up a Wilkinson clone for around $20 online, which turned out to be the best thing I could have done.
The design of the bridge is such that there is a lot of room backward and forward to adjust, as well as being able to flip its saddles without much effort. Intonation was breeze and the guitar was setup in maybe half an hour.

When I installed the Bigsby, I used a Vibramate to mount it in the existing post holes. The posts came out with little effort (I only needed to use my fingers), which I thought might be a problem later on. during the setup, one side of the Vibramate had lifted out of the body. I wedged it back in, but this doesn't seem like its going to be the end of that issue. I left it overnight, so it's holding for the time being.

The Bigsby design has two design flaws in my opinion. One, the way that the strings are mounted and the other is the limited movement of the vibrato bar. It doesn't allow the bar to move over the strings and sits just next to the high E. This means an adjustment of technique, by either grabbing it with my pinky, or pausing on a chord to move the bar. On my other guitars I usually have the bar centered over the strings and Hold it with three fingers while playing. I'm probably going to grind the stopper off the Bigsby to retain that freedom of movement.

You might recall that I scored some pickups from my friend's Gretsch. One of these I modified to fit in the neck position of the Les Paul. The biggest delay in putting this guitar back together was that I had not been lucky with trying to make a pickup ring to suit. It's not a standard sized mini humbucker, so there aren't any off the shelf solutions going around. What I ended up doing was modifying a standard humbucker ring to hold it on place. Now I have the same problem with this pickup as I do with the Filtertron on my Surfcaster. The string width is different. On Gretsch guitars the spacing is a little wider than Gibson spacing (which the Les Paul and Surfcaster use). This is no big deal on the center strings, but the E strings fall inside of the pole pieces and not directly over the op of them as intended.

I never thought it would make much of a difference. But it does. It makes a huge difference. The inner strings have great clarity and impact, where the outer strings are dull and lackluster. The pole pieces can be adjusted, but it only makes the string louder without the characteristic tone of the pickup.

One way of compensating for this is to put the pickup on an angle, so that the string almost sits in middle of the pair of poles. At this point I haven't managed to get quite enough of an angle and will need to extract the pickup and trim some more metal off the pickup casing.

The Gretsch pickup has a nice piano like tone, which really changes the character of the guitar. Coupled with the Semour Duncan P-Rail and the active EQ, I really do have a lot of tone options available on this guitar.
It's not quite finished, but I'm happy with the sound and feel, so it will likely be some time before I attend to the remaining issues.


So many guitars. So little time!

Monday, December 20, 2010

2010 - Tokai Hummingbird

Recently I picked up one of the coolest shaped guitars on the planet.
It's like an evil Mosrite. German carved and all pointy horned. I first became aware of this guitar via Guitar Nerd

The guitar came in the original brown leather/vinyl gig bag from the late 1960's.
As far as I can tell, the guitar dates back to 1968. Unfortunately there's no serial number on it as back then, they were just stickers on the back of the headstock.

The guitar is in ok condition for its years, but far from perfect.
Fortunately the neck is nice and straight, only one minor ding on it near the headstock, which is barely noticeable. At some stage the original vibrato has been removed and three of the holes have been filled with dowel, but not painted over. The original tuning machines are long gone and the nut seems to have been replaced as the current nut needs some filing down to get the strings sitting on the zero fret.

The neck is made from five or six pieces of timber laminated together. It looks like the neck has been refinished as the joins in the timber seem to be rather dirty, it looks well used.

The pickups appear to be of the same vintage and measure approx 6k. They have a nice meaty p90esque sound. But I don't think they're original. Looking at the pick guard, it looks like someone has done a real hatchet job getting the pickups in there. Under the pickup rings, the plastic is very rough and the pickups themselves are misaligned when compared to the routing. Screws to hold the rings down are too long and appear to have come from a hardware store bulk pack. The body has had some wood removed where the screws protude under the scratch guard.

I suspect that the pickups which were originally installed were more like the typical Teisco variety.
There's also extra routing under the scratchplate where a switch is likley to have been placed, I might add one back in there as a matter of course, either a kill switch or a low cut.

The vibrato assembly is kind of weird. It's like a half Bigsby with provision to accept a stat style bar.
Where the bar is attached, the metal is cracked, but I suspect that it will be strong enough to handle any of my whammy antics. The unit does look the part of a vintage guitar so I'll probably leave it as is. A full bigsby just wouldn't do the guitar justtice, however a Gibson Maestro might!

So the guitar needs quite a bit of T.L.C.

My plan is to replace the scratch guard with something of my own design. it's something I'd prefer to have done with a CNC Mill, but I'm sure with a few practice runs on thin MDF it's not too far outside of my skill level. Maybe some tortoiseshell or a dark pearl. The plan is to try to cover up the holes from the previous vibrato.

The pickups are nice sounding, but don't really suit the look of the guitar, so I'm toying with the idea of installing jazzmaster pickups with cream covers to match the body.

The Hummingbird has promise to be a  unique beauty once it's restored, even if it's not restored to it's original glory. I'll be taking my sweet time with this one and update whenever I get a chance.
Photoshopped overlay of pickguard and routing.