Showing posts with label switchcraft. Show all posts
Showing posts with label switchcraft. Show all posts

Thursday, July 09, 2020

Yamaha ERG121C Makeover: Part One

Related Posts
Part One | Part Two | Part Three

What do we have here? It's a used Yamaha ERG121C HSH rock machine in ... wait for it ... shocking pink. I assume the previous owner was responsible for the paint job, and also some nice upgrades. He'd put in a trio of Seymour Duncans: SH-2N Jazz Model (neck), APS-1 Alnico Pro II (middle), and SH-4 JB Model (bridge). 

He'd also wired in a CRL 5-way switch, CTS 500K pots, and Switchcraft #11 jack socket. The bee's knees, I'd say. Only problem was that the wiring was a little suspect, and the ERG121C wasn't "sounding as it should" (current owner's words, not mine).

And so, besides requesting a complete rewiring job, the current owner would like to have the body stripped down to bare wood and refinished natural. Okey dokey, it's another heat gun and scraper job for me. Underneath the pink was black (the original color, I guess), a silver undercoat, thick layer of sealer; and some kind of veneer. I sanded the body down to bare wood and was pleased to discover that it was a solid 3-piece job; not plywood or something similarly distasteful. 

The next step was filling the grain with good ole' Elmer's Carpenter's Natural Wood Filler. Left it to dry overnight, and sanded off the excess the next day. Then it was time to stain the body with StewMac ColorTone Liquid Stain (#5030 - Vintage Amber). Once the stain had set, it was time to settle any woodwork before proceeding with refinishing.

Stock, the ERG121C features two ring-mounted humbuckers and a direct-mounted single coil. However, the previous owner had done away with the rings and direct-mounted the SH-2N and  SH-4 using wood screws that were too short and of all things; Strat pickup rubber tubing instead of springs or foam inserts. As you can guess, the humbuckers' height could not be adjusted.

To solve this issue, I first plugged the pickup height screw cavities with slightly over-tall glued-in wooden blocks. After the glue had dried, I pared down these wooden plugs until they were level with the cavity bottom. Following this, I reattached the neck, put the humbuckers in their respective routs, and strung up the high and low E strings. 

This was just a mock-up that helped me to align the polepieces and strings. The SH-2 lined up okay, but the SH-4 was a "little" off (to put it kindly). Someone should have told the poor guy that he needed a TB-4 JB Model Trembucker, and not an SH-4 (standard spacing) for correct string-polepiece alignment at the bridge.

Resigning myself to the fact that there was no budget for a new bridge humbucker, I proceeded to drill pilot holes for the new pickup height screws (shortened P-bass pickup height screws) and did a test run with Strat conical pickup springs in place. All went well, thankfully, and I sealed the deal by gluing small metal washers around each screw hole. These washers will help to keep the screws from wandering around when it's finally time to reinstall the pickups.

I'm now in the middle of refinishing the body in Tru-Oil. Stay tuned for later updates. See you soon :)














Sunday, May 10, 2020

2014 Gibson LPJ Gets Lots of Upgrades

Preamble
The 2014 Gibson LPJ 120th Anniversary Les Paul featured in this post was bought used in 2017. I emailed Gibson Support along with the relevant details and pictures, and they replied in less than 24 hours; verifying the authenticity of the LPJ. Thank you Gibson Support :). Besides a ton of cool features, including the nicely worn Cherry (Satin) finish; what really got me hooked was its fat chunky neck. Let's take a look at some stock specs now, based on information from Gibson and my own observations.

Stock Specs
Body: Maple Top/Mahogany Back
Neck: Maple/'50s Rounded Profile
Fretboard: Rosewood/24.75" Scale/12" Radius/Trapezoid Inlays/22 Frets
Nut: White TekToid
Tuners: Nickel-plated Vintage-style/Pearloid Buttons
Bridge/Tailpiece: Chrome-plated Tune-o-matic/Stop Bar
Pickups: 1961 Alnico V Zebra Coil (Neck/Bridge)
Electronics: PCB "Quick Connect" Board/CTS 500K Pots/Switchcraft Toggle Switch
Noteworthy Features: Black "Supreme Grip" Speed Knobs/Custom "120th Anniversary" Inlay

Heartbreaking Revelations
The LPJ was awfully noisy, so I guessed there might be a bad ground connection somewhere. Well, time to open her up. What I saw inside broke my heart. The pickups, toggle switch and output jack were all "quick-connect," and plugged into corresponding sockets on a PCB board. The pots had "Gibson" stamped on them, but were soldered directly to the board via three "upside down" tabs. Not your run-of-the-mill CTS pots, for sure.

The output jack was stamped "Made in China," and uncannily similar to the Neutrik/Rean NYS229s I install in guitars whose owners don't want to fork out the dough for a Switchcraft #11. Now I know why Gibson specifies the output jack as simply being "1/4" mono." Seriously? A made-in-China component in a genuine made-in-the-US-of-A Gibson?

Worst of all, I finally discovered a possible reason behind the grounding issue -- the bridge ground wire was not soldered to the board. It was just stuck into a quick-release socket. Compounding this was the fact that none of the cavities were shielded. Way to go, Gibson!

That did it. I knew I wouldn't be able to live with myself if I did not rewire the guitar to "traditional" Les Paul specs. Kindly note that I am in no way implying that there was anything wrong with the stock electronics. I'm sure there are many players out there who don't give a rat's ass about Gibson's cost-cutting measures; or obsess over the fact that their Les Paul's innards now more closely resemble a computer than ever.

Well, me being me; the stock electronics were eventually removed (very carefully) for safekeeping. And soon after, as luck would have it, someone bought the whole lot off me; and had me install them in his Chibson :)

Upgrades
The first thing I did was to order a pair of Seymour Duncan SH-1 '59s (Vintage Blues Set). Yeah, I'm that sort of guy. Other upgrades included a Switchcraft toggle switch, Gavitt braided shielded push-back cloth wire, CTS 500K long shaft pots, Russian caps (0.015uF-Neck/0.022uf-Bridge); and Switchcraft #11 output jack. Pickup/toggle switch/control cavities were shielded with conductive carbon paint; and the backs of the control cavity/toggle switch covers with self-adhesive copper foil.

Corrosion had already set in on the stock tune-o-matic bridge, and it was extremely difficult to adjust the saddles. In fact, the B string saddle was totally frozen. I replaced the bridge with a Kluson KLP-1200N. The shinier nickel plating didn't quite match the matte satin finish on the stop bar; but it worked out okay. Oh yes, I almost forgot; the stock "LPJ" truss rod cover was replaced with a Gibson PRTR-010 (blank).

YouTube Video
Kechik is a young journeyman who has honed his skills at numerous stages, clubs and pubs throughout Malaya. Here's a brief YouTube VIDEO of Kechik making this 2014 Gibson LPJ cry and sing. Enjoy :)

















Tuesday, February 25, 2020

Fender Japan ST54 Stratocaster Restoration

This appears to be an MIJ ST54 Strat. The body is from an "ST54-128" while the neck is from an "ST54-117." Among its most prominent features are (i) a nitro-finished sunburst ash body, (ii) one-piece 7.25" radius maple neck with skunk stripe and neck heel truss rod adjustment, (iii) 21 narrow vintage frets, (iv) vintage-style tuners, (v) black dot fretboard inlays, (vi) six-screw vintage-style tremolo bridge with Fender-stamped bent steel saddles, (vii) single round vintage-style string tree; and (viii) single-ply white pickguard.

The neck and middle pickups appear to be stock Fender Alnicos, complete with Gavitt-style leads; while the bridge is a Seymour Duncan JB Jr. The wiring's a barely-functioning mess, and someone's definitely been in here with a soldering iron; most probably while replacing the stock bridge pickup with the JB Jr. Electronics-wise, all components (except the pickups) will be upgraded. This upgrade would include full shielding, Gavitt wiring, CTS pots, CRL 5-way switch, Sprague "Orange Drop" tone cap, and Switchcraft #11 output jack.

As for the body, it's been thoroughly abused; courtesy of an ill-executed "relic" job. Chisel marks can be clearly seen and lots of gnarly raw wood's been exposed. Decay and mould have already started to set in, so I'll be cleaning, sanding, staining and sealing the affected sections of the body.

On to the hardware, then. Rust, tarnish and corrosion are the order of the day here; so I'll be restoring what I can, and replacing what can't be saved. The owner isn't happy with the vintage frets, and would like the neck refretted with jumbos. Now, as the ultra-thin fretboard lacquer is already badly cracked and chipped, I'll be sanding it all off and restaining/refinishing the entire fretboard.

YouTube Videos: Che'gu Awal | Armz-3D




















Sunday, May 12, 2019

Fender Custom Shop Limited Edition Stratocaster

Specifications as Reviewed
Body: Alder, "Tiger-Stripe" Maple Top
Neck: One-piece Roasted Birdseye Maple by RG Custom Guitars 
Fretboard: 25.5" scale, 22 medium-jumbo frets, clay dot inlays, 9.5" radius
Hardware Color: Gold
Bridge: American Vintage Series Stratocaster Tremolo
Tuners: Fender/Schaller XGE-1G
Controls: 5-way switch, Master Volume, Tone 1, Tone 2
Pickups: SSS, hand-wound by Josefina Campos
Pickguard/Back Plate: Copper Paisley Floral Custom Bakelite*
Knobs: Custom Brass with set-screws*
Case: G&G Deluxe Hardshell Case

*Added by the owner.

Work Done and Parts Replaced/Added
Rewiring
Full pickguard/body cavity shielding
Latex pickup tubing
CRL 5-way switch,CTS 250K pots, Sprague "Orange Drop" cap, Switchcraft output jack
Tremolo spring
Fretboard reconditioning
Hardware degrime/polish
Body degrime/polish
Restring and setup