Showing posts with label bassupgrade. Show all posts
Showing posts with label bassupgrade. Show all posts

Saturday, January 02, 2021

Chord Solidbody Bass Upgrade and Makeover

Happy New Year folks :) This is my first post for 2021, and it features a "Chord" solidbody bass that looks a lot like a typical Jazz Bass. Construction-wise, this bass sports a plywood body, three-ply white/black/white pickguard, bolt-on maple neck; and 12" radius rosewood fretboard with 21 frets. The electronics consist of two single-coil pickups wired to two volumes and a master tone.

As the owner didn't quite like the stock red finish, he requested that the bass be refinished in flat black. He also wanted the "Chord" headstock label removed, for obvious reasons. And so, the headstock face was sanded down to bare wood; and refinished in Tru-Oil. Meanwhile, any visible dings and gouges in the body were filled with Elmer's Wood Filler and sanded flat. Then, after scuff-sanding the whole body, it was refinished in flat black; with a top coat of flat clear for added protection.

Although the stock electronics were working fine, I was instructed to upgrade them, and while I was at it; shield the body cavities with conductive shielding paint. New components added included Alpha 250K pots, a Russian K40Y-9 0.033uF tone cap; and Neutrik/Rean NYS229 output jack.

Hardware-wise, all rusty components were replaced. Luckily, the bridge, as well as control and neck plates; were still in useable condition. They were given a good de-gunking, lube and polish; and reused. The open-gear "elephant ear" tuners, however, just had to go. The gears were worn and would not turn smoothly even after servicing. One of them even had a loose ear which would not stay in place. As such, they were honorably discharged; and a new set installed. And, as expected; it was not a simple drop-in job. The old tuner mounting screw holes had to be plugged and trimmed flush, new holes drilled; and the tuner holes reamed a bit to accommodate the slightly-larger tuner posts.

Well, folks, that's it for this post. Thanks for visiting, and do drop by again soon. Meanwhile, stay home, stay safe; and God bless :)





















Saturday, July 18, 2020

Seymour Duncan STC-3P Bass Preamp - Part Two


The STC-3P preamp had been wired up, and everything worked as it should. Tried fitting the circuit board into the control cavity, but the pickguard would not sit flush with the top of the body. I guess it was because of the massive bulk of the wiring getting in the way.

And so, it was time to carve out a new cavity just for the circuit board. I used my drill press with auger and router bits to gouge out a suitably-sized area. Cleanup was with chisels and my trusty rotary tool. Then, the cavity was shielded with conductive shielding paint. A piece of conductive self-adhesive copper tape was also added to ensure connectivity between the cavity shielding and pickguard foil shield. Once dry, I sealed the shielding paint layer with a couple coats of clear.

This new configuration meant that the circuit board would now be much further away from the pots; and I'd have to splice extra wire to each of the ten leads connecting the pots to the plastic connectors. Lengthening these hookup leads was a major headache in itself. To make sure I didn't get confused about what went where, I tackled only one lead at a time. Took me the better part of the night to get all this done.

Besides this, the battery compartment had to be modified to fit only one 9V battery. This was accomplished using strategically-placed and glued high density foam inserts. Tested the mod with an Energizer Max, and it was as "snug as a bug in a rug;" as my late Dad would say.

This time I was able to reinstall the pickguard with no problems, thanks in part to the judicious use of cable ties. Called up SUK bassist Jack Firdaus to give this American Deluxe Precision Bass V a whirl; and he was here in double-quick time. After all, he'd be the one using this bass; right? Once Jack had warmed up, he went straight into slap-and-pop mode. And guess what? I actually managed to record two short videos of Jack doing his thing straight into my Laney RB2. Uploaded them to YouTube, and here they are: Video One | Video Two.

Thanks for dropping by, and do enjoy the pics :)












Wednesday, July 15, 2020

Seymour Duncan STC-3P Bass Preamp - Part One


Hallelujah! The Seymour Duncan STC-3P Bass Preamp is finally here. If you will recall, the store had earlier sent an STC-3M4, which would not work for the 2004 American Deluxe Precision Bass V electronics upgrade we've got planned. This one, thankfully, has got the features we need: Master Volume, Pickup Blend Control; and three-band EQ.

The Master Volume pot is a push/pull. Pushed in, it operates as a regular master volume for both pickups. Pulled up, the "Slap Contour" circuit is engaged; which, as the name implies, is an EQ preset specifically tailored to slap-and-pop techniques. Do note that the Slap Contour mid cut and bass boost can be "fine-tuned" by adjusting two trimpots located on the circuit board.

The bass/treble controls share one concentric pot; giving us a total of four controls. Now, if we'd gotten a preamp with separate controls for bass and treble; we'd have no place for the fifth pot as this bass has only four holes in the pickguard. I've hooked up the preamp to the pickups, and everything works as it should.

In the upcoming episode, we'll find out whether the pickguard can be reinstalled without any problem. If the new innards are too bulky to fit; we'll most probably have to enlarge or modify the control cavity. That's all for this post. Stay home, stay safe, and stay tuned; folks :)













Monday, July 06, 2020

Seymour Duncan STC-3M4 Bass Preamp

The bass player who wanted to upgrade his 2004 American Deluxe Precision Bass V had actually ordered a Seymour Duncan STC-3P Tone Circuit (onboard preamp). However, he was sent this "STC-3M4 Tone Circuit for Music Man Bass" instead. Which would be totally unusable as the STC-3M4 lacked a dedicated pickup blend pot; while his Precision Bass V had two pickups in a P/J configuration. In any case, since the box was already open, it would have been be a waste not to take some pics and share them with you; my faithful readers. Last I heard, the store had admitted their mistake and would be sending him an STC-3P. Stay tuned for updates :)