Josh & Megan

Lake City Livin'

The Cigar Box Blues

Posted 895 days ago by Josh Caldwell, tags: , , , , , , comments closed.

If you know me at all, you’ll no doubt be familiar with my bent for obscure hobbies (gas lantern restoration, anyone?), so it should come as no surprise that I’ve taken up what I euphemistically refer to as “found object luthiery,” or cigar box guitar building. I’ve tried my hand at many diy audio projects in the past (see tube amp), but I’ve always sought to build a guitar from scratch (scratch like wood, not like parts). When first I caught wind of the cigar box guitar revolution a few years ago, I filed the idea away interesting alternative to “real” (read “expensive”) luthiery.
When Make Magazine ran an article on cigar box guitars (CBGs) about a year ago, my interest was rekindled and I began gathering information in earnest. Unfortunately, my graduate studies and student teaching proved quite adept at thwarting any attempts at what one might call hobbies. It wasn’t until this June that I found the time and energy to build a CBG of my own. Thanks to a couple of cigar boxes that my mom found in an antique shop, I’ve now built two playable instruments and caught the bug in a big way. I started with a mandolin, followed up with a 25” scale four-banger, and I’m now on the hunt for more boxes to fuel my new-found obsession (hint hint).

Fret markers ready to be cut down

Fret markers ready to be cut down

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Posted Jun 24, 09:43 PM.
Taken Jun 23, 10:54 AM.

Mando neck

Mando neck

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Posted Jun 24, 09:35 PM.
Taken Jun 24, 06:29 PM.

Finished mando

Finished mando

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Posted Jul 2, 12:47 PM.
Taken Jun 29, 03:44 PM.

Headstock

Headstock

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Posted Jul 16, 02:49 PM.
Taken Jul 16, 11:40 AM.

Interior with piezo pickup

Interior with piezo pickup

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Posted Jul 16, 02:49 PM.
Taken Jul 16, 11:41 AM.

Close up of the body

Close up of the body

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Posted Jul 16, 02:48 PM.
Taken Jul 16, 11:40 AM.

The Fuente CGB

The Fuente CGB

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Posted Jul 16, 02:48 PM.
Taken Jul 16, 11:40 AM.

A little back porch strummin'

A little back porch strummin'

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Posted Aug 25, 11:44 AM.
Taken Aug 9, 12:45 PM.

Tube Amp Completed!

Posted 927 days ago by Josh Caldwell, tags: , , , , comments closed.

Well, I technically finished it during spring break, but let’s not nitpick. I must admit, part of me didn’t really expect this thing to turn out at all, let alone as well as it did. This was my first time working with vacuum tubes and line level voltage, so I was constantly flinching, imagining massive arcs of blue electricity leaping across the turret board and thick smoke pouring from the transformers. Fortunately, nothing of the sort occurred, and my only real setback was a complete lack of sound when I first turned it on (turns out, you shouldn’t route signal to ground :) ). Overall I spent about 6 months drilling, painting, soldering, desoldering, resoldering, sawing, gluing, desoldering, resoldering, and screwing together an amp that has turned out to be AWESOME! I’ve got to give a shout out to the guys at AX84.com, who graciously answered all of my annoying newbie questions – the boards there are full of some of the most brilliant, friendly, and helpful amp builders on the net. My Mbox doesn’t like Leopard at the moment, but as soon as I get it working I’ll record some samples of this monster.

Drilled

Drilled

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Posted Jul 24, 12:50 PM.
Taken Aug 8, 12:35 PM.

components in place for a dry fit test

components in place for a dry fit test

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Posted Jul 24, 12:50 PM.
Taken Apr 9, 05:05 AM.

The guts all wired up

The guts all wired up

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Posted Jul 24, 12:51 PM.
Taken Apr 9, 05:06 AM.

The big wires are RG-58 coax, the only shielded cable I had on hand. Unfortunately, it caused some hum, so I ordered some smaller and more flexible shielded wire.

The guts after some minor revisions

The guts after some minor revisions

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Posted Jul 24, 12:51 PM.
Taken May 2, 06:53 PM.

Baltic birch ply with butt joints

Baltic birch ply with butt joints

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Posted Jul 24, 12:50 PM.
Taken Apr 5, 01:20 PM.

Almost finished, burlap covering drying

Almost finished, burlap covering drying

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Posted Jul 24, 12:51 PM.
Taken Apr 10, 06:36 PM.

My homebuilt tube amp head, based on the AX84 P1 circuit

My homebuilt tube amp head, based on the AX84 P1 circuit

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Posted Jul 24, 12:51 PM.
Taken Apr 15, 02:05 PM.

AX84 P1 tube amp and Peavey Classic 115 cab

AX84 P1 tube amp and Peavey Classic 115 cab

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Posted Jul 24, 12:51 PM.
Taken Apr 15, 02:06 PM.

Tube Amp Step 1: Cut a Hole in a Box

Posted 1273 days ago by Josh Caldwell, tags: , , , , comments closed.

I’ve been researching DIY tube guitar amplifiers for quite a while now. A few months ago I put together a small chip amp using a kit from Minty Amps, but that only confirmed my need for a bigger project. Fortunately my Mom, Bill, the boys and the girls got together and bought an AX84 tube amp kit for my birthday. The project has become a nice distraction from my school work, and over the last week I’ve drilled the chassis and started soldering together the eyelet board. But alas, production screeched to a halt yesterday when I found an incorrect resistor in my kit! Thankfully Chris at Doberman Amps was really nice and is sending me the correct part, but I doubt I will get back to work until after my trip to Ashland.