Showing posts with label phase reversal. Show all posts
Showing posts with label phase reversal. Show all posts

Monday, June 10, 2013

The Red Special - Build Completed

In the mid 80's my guitar teacher in New Orleans, Austin Sicard played copy of Brian May's Red Special. I always liked that guitar. So, naturally when I started building guitars, the Red Special was on my short list of guitars to build. Here is my take on this classic. Instead of using 18th century Oak and Mahogany, I opted for Maple and Padouk. Yes, I picked the Padouk because of its natural red color. The Fretboard is a 25 inch scale instead of the 24 inch scale of the original. I also chose a Bigsby-type vibrato instead trying to replicate May's tremolo. To compensate for the brighter tone of the Maple and Padouk, I used 250k pots and a .047 uF capacitor.

Now after two years of work I have completed the guitar. Here are the stats:
Maple with a thin strip of Padouk Center
Maple backs with book-matched Padouk tops on the wings
Bolt-On Three piece Maple and Padouk neck with a Curly Maple fretboard
10° angle on the headstock
4° angle on the neck
Three Brighton Rock Vintage Spec Alnico Pickups
Three Phase Shift Switches
Three On/Off switches
Two 250k pots
.047uF Capacitor
24 fret neck
Zero fret
Bigsby-type Vibrato
Gotoh Tuners






























This build was really more of a study in wood, electronics, sound quality and shape. The guitar has a bright crisp ring when plugged in. The phase shifting switches help create a variety of sounds, from a thin single coil reminiscent of a Strat or Tele to a thick warm Humbucker. I'm not too pleased with the Bigsby-type vibrato. I may replace it with a real Bigsby at some point in the future. I remember this the next time I see a good price on an ebay knock off.

As far as the shape is concerned, this is a stand up and play type of guitar. The bottom curve doesn't lend itself to sitting down and playing. I find myself having to use more of a classical sitting position with the guitar on my left thigh rather than my right. The neck is thinner than the one I built for last year's Tele. It feels faster.

Overall, I love the look, sound and feel of this guitar. And I've learned a great deal from this build. I've complained about Padouk before. And it will affect whether I choose to use it in the future. I discovered that the sawdust from Padouk causes sinus problems for me. In addition, pairing Padouk with Maple may not be a best choice. Padouk also has a tendency to bleed when applying shellac. But all of this aside, I love the look. Nothing like a naturally red wood.























































































































































Would I build another Red Special? And if so, would I do anything differently? Yes, and Yes.


First, I'd use a Mahogany back, with a book-matched Padouk top (yeah, I know. Did I mention how much I love the look of this guitar.) I'd use a three piece Padouk neck with a Padouk fretboard. The neck would be set and glued instead of a bolt on. 

Next, I'd like to try three on/off/on DPDT instead of the six switches. This way I could save some real estate while combining the functionality of two separate phase shifting and on/off switches for each pickup. I'd also consider using a concentric double pot instead of two pots - again real estate.

And finally, I'd spring the extra money for the copy of May's tremolo.

Friday, May 31, 2013

Long Overdue Post - Red Special

So, it's been almost a year since my last blog posting. I have been working (very slowly) on a few different projects. There have been set backs and mistakes. Mostly problems with finishes.
But I am finally putting the finishing touches on the Red Special. The body has been assembled.



























The wiring is a little complicated. The Red Special has three On/Off switches and three phase reversal switches. I used six On/On DPDT switches. After doing a little online research, I've begun to wonder if this could have been accomplished with three On/Off/On DPDT switches instead. At some point in the future I may give it a try.

Instead of working inside the guitar, I used a piece of card board to work on. This way I was able to avoid damaging the back of the body. This also gave me better access to the small terminals on the DPDT switches.




















After placing the wiring in the Red Special, and plugging it in, I discovered that I had two bad switches - the phase switch for the neck pickup and the on off for the bridge pickup. Unfortunately, no one local carries these particular DPDT switches. So now I just have to wait until next week for an internet order comes in.