This twelver is a mashup of a number of different models. The body is Danelectro-style masonite over chambered plywood, with Tolex binding. The headstock is interleaved Rickenbacker, the bridge is more like a Gibson, while the overall style is my typical Audiovox.
This one is a body-twin to the 12-string, but with a 30" bass neck. Everything about it is Danelectro - lipstick pickups wired in series, stacked controls, masonite pickguard, Danelectro bridge. The body is masonite over chambered plywood, oil-based poly over pearl paint.
This one is almost identical in construction to the Danelectro-style - masonite over chambered plywood body, masonite pickguard. The neck is purpleheart over maple, with plastic fret lines. The soundhole merely serves as a pickup mount, and the pickup was just insurance against never getting the intended piezo system to work. Eventually, I did get it to work, the piezo is incorporated in a modified bridge, and sounds great. 30" scale.
This body is maple plywood over a hollow pine core, double-bound. It came out very lightweight, too light to balance even a guitar neck. This was originally going to be the 12-string, but I realized that it would never balance. So I shuffled parts and bodies between some other projects - a planned six-string got canceled and became the twelver. That left this body free. I thought about it a while and decided it would make a good mandolin.
These are the two main templates I used to build all the Audiovoxen. The image is straight from the camera, simply save it and print it out at the proper scale. The dimensions of the body template are 17" long and 11-1/2" wide. The overall length of the headstock template is 10-7/8". The neck pocket is Fender-standard.
This is my own original design, it is inspired by the old Audiovox, but not copied from it. My original design was an accurate copy, and it didn't work very well. Therefore, nothing needs to be exact if you want to build one of these, there are no official factory specifications.
This bass is a 21" scale, with a piezo saddle mounted in an adjustable bridge. The soundhole is just for looks. The strings are metal-wound Kalas. The fretboard is cut out of the ugliest piece of wood I ever received. For such a small neck, I managed to cut around most of the ugly, and the result isn't half bad.
This is probably the cheapest violin bass on earth, and I got a discount on top of that because it had a persistent buzz that turned out to be a bad string. "Brownsville" is a house brand for Sam Ash, where I bought it on a whim. The scale is about 30.5". It's a beauty, isn't it?
This body style was originally reissued in a range of models - guitar, bass ( long and short scale ) and baritone. I only have the guitar. These were part of Danelectro's Chinese production, and while not bad, are not as nice as the prior or later Korean models. A second reissue in 2015 restored the gloss sparkly finish of the vintage original. None of the reissues use the original headstock shape, though.
This was a box of junk I got on eBay, originally a vintage Convertible. I replaced the front and back with cabinet-grade birch plywood, as the original mother-of-countertop material is no longer available. I rebuilt it as something like a Companion, which is a very rare model. The neck and sides are vintage, the rest is modern.
I stumbled across this stuff online, and it looked so incredible that I impulse-bought a quart. A finish that you can smear on with a sponge and cure in 3 minutes with sunshine? That cuts finishing time from months to weeks to one day !!!