Skip to main content

rubytone

Drive-In-Mini

$2,800.00

A 19.5-inch-scale mini electric guitar built inside a 1940s Simplex drive-in movie speaker, with a cherry carpenter-level beam, onboard amp and rechargeable battery.

A 19.5-inch-scale mini electric guitar built inside a 1940s Simplex drive-in movie speaker, with a cherry carpenter-level beam, onboard amp and rechargeable battery.

The Drive-In of #stayhome

$1,800 for a custom copy*

The idea actually started before #stayhome, on a chilly afternoon aboard a nearly empty bus coming from New Jersey. I was one of the only passengers, carrying my bulky Harmony bass, when the driver eventually looked back at me and asked, “What have you got on that guitar? Is it a drive-in movie speaker?”

It wasn’t.

But it could be.

That was enough to send me looking. Eventually I found exactly what I had begun imagining: a 1940s Simplex drive-in movie speaker, the kind that once hung from a car window while you watched a movie under the stars. Before drive-ins started broadcasting the soundtrack over your car radio, thousands of these little metal boxes were how people heard the movie. I looked at one and saw a guitar.

When I Had Time… During #stayhome

By 2020, the Simplex speaker was already waiting in my boneyard. When we suddenly had time to stay home and I decided to build twelve guitars without buying anything I didn't already have, it was finally time to find out what I could make from it.

The speaker enclosure became the body, but I didn't want the shell carrying the tension of the strings. An old-growth redwood beam takes care of the structural work, with the neck, bridge and strings working through it while the Simplex enclosure gets to remain what makes the instrument look like nothing else.

The original speaker driver was replaced with a modern speaker, and I mounted a tiny amplifier on the back. The Simplex already had a single control knob, so I gave it a new job as the guitar's volume control. Power comes from a rechargeable 9V lithium battery, which meant I didn't have to cut another battery compartment into an object that had already survived since the 1940s.

A maple neck and maple fingerboard provide the straightforward part of the equation, while a mandolin bridge handles the other end. Even the chrome bass tuning machines found an unusual home inside the speaker enclosure. Like a lot of the #stayhome guitars, the choices weren't made by ordering the perfect collection of parts. The challenge was to look at what was already there and figure out how those things could work together.

The result is small, self-contained and gloriously strange.

And Then There Is the Stance

One of my favorite things about Drive-In-Mini has nothing to do with how it sounds. It stands up by itself.

Set it down and it looks a little like a trophy, a little like a soldier and a little like some artifact from an alternate history of American music. It doesn't need a guitar stand. It just occupies the room.

That's part of what I like about using an object like this. From one direction you recognize a guitar. From another, you recognize something that once hung from the window of a car at a drive-in theater. Neither identity has to completely surrender to the other.

When I Have More Time…

The original Drive-In-Mini belongs to the twelve-guitar #stayhome collection, so I won't separate it from the collection for an individual sale. But I would love to build another one.

And I wouldn't be particularly interested in making an exact reproduction.

A custom copy gives us the chance to start with the same idea and decide together where the next one goes. Neck, beam, bridge, tailpiece, tuners, pickups, controls and colors can all change according to the player and whatever interesting materials we find to work with.

That seems more appropriate anyway. The first Drive-In-Mini exists because a bus driver looked at something that wasn't a drive-in movie speaker and accidentally suggested that it should be.

There ought to be more than one way to finish that idea.

*Boneyard Rule: The listed $1,800 price is for a custom copy. The original is part of the twelve-piece #stayhome collection and stays with the collection.

Additional information

Instrument Type

4-String Bass, Mini Guitar

Approach

Found-Object Build, Front Integrated-Amp Build, Structural Reinterpretation

Construction

Simple, Cantilevered

Body

Drive-In Movie Speaker, Redwood Tank Stave

Beam

Redwood Water Tank Stave

Neck

Maple

Fingerboard

Maple

Headstock

Headless

Scale Length

19.5"

Number of Frets

20

Bridge

Archtop Mandolin Bridge

Tailpiece
Neck Pickup

Bass Guitar Humbucker

Middle Pickup
Bridge Pickup
Pickup Switch
Controls

1 Vol.

Knobs

Vintage Chicken Head Knobs

Amplifier

Rubÿtone MicroAmp

Power Supply

12V Security-Camera Backup Battery

Drive-In-Mini
Rubÿtone Guitar Scorecard
8.92 / 10
321 / 360 points

playing

Fun to Play
6
The first test is whether the guitar makes you want to keep playing it. A high score means the instrument feels inviting, responsive, and rewarding rather than merely interesting to look at. The best examples have enough soul that you forget you are evaluating them and simply keep going.
Playability
5
Measures how naturally the instrument responds to ordinary playing technique across the neck. Action, fretwork, neck feel, access, and setup should work together without asking the player to compensate for the design. A strong score means the unusual construction never becomes an excuse for compromised playing.
Ergonomics
4
Considers how comfortably the instrument sits against the body, hangs from a strap, and positions the hands. Weight distribution matters as much as total weight, especially when found objects or onboard amplification shift the center of gravity. The most artful solutions make an unconventional shape feel surprisingly natural.
Tone Quality
3
Judges the character, clarity, richness, and usefulness of the instrument’s core sound. The goal is not one supposedly perfect tone, but a voice with musical identity and enough detail to reward attentive playing. The highest scores go to guitars whose sound has real soul rather than merely acceptable frequency response.
Tonal Versatility
2
Measures how many genuinely useful sounds the instrument can produce rather than simply counting switches and settings. Different pickup combinations and controls should create musically distinct choices that a player would actually use. A clever circuit scores higher when its versatility feels purposeful instead of complicated for its own sake.
Amplification
3
Evaluates how convincingly the guitar performs through its intended amplification system, whether external or built in. Output, clarity, noise, feedback behavior, and usable volume all matter. For self-amplified Rubÿtones, a high score means the amplifier feels integrated into the instrument rather than attached as an afterthought.

build

Fit & Finish
10
Evaluates the precision and care visible in joints, edges, fretwork, hardware installation, surfaces, wiring, and final setup. Handmade character is welcome; carelessness is not the same thing as character. A strong score shows experienced workmanship while allowing the object to retain the marks and soul of its previous life.
Portability
10
Measures whether the instrument’s mass and dimensions make sense for the way it is meant to be used. A guitar with an onboard amp may reasonably weigh more, but every added ounce should earn its place. High scores reward designs that are easy to carry, hold, busk with, or live with without sacrificing the idea.
Reliability
10
Rates the likelihood that the guitar will keep working properly through normal playing, transport, and repeated use. Structural joints, wiring, controls, hardware, and power systems should feel dependable rather than experimental in the risky sense. A high score means the wit of the design is backed by experienced engineering.
Repairability
10
Considers how sensibly the instrument can be serviced when something eventually wears out or fails. Standard parts, accessible wiring, replaceable components, and understandable construction all help. The strongest designs are inventive without turning a future repair into an archaeological excavation.
Solutions
10
Scores the quality of the solutions used when unconventional materials create unconventional problems. Beam placement, neck angle, pickup clearance, feedback, balance, and internal packaging are all opportunities to demonstrate experience. High scores go to solutions that are technically sound and artful enough to look inevitable afterward.
Integration
10
Measures how successfully all the unrelated parts become one coherent working instrument. Neck, beam, body, hardware, electronics, amplifier, and found objects should cooperate mechanically and visually. The best integrations have a kind of soul: the parts stop looking assembled and start looking as though they found each other.

design

Innovation
10
Measures whether the guitar introduces a genuinely fresh idea, solution, relationship, or way of thinking about an instrument. Novelty alone is not enough; the innovation should improve the object, deepen the concept, or open a useful new possibility.
Shouldn’t Work
10
Rewards designs that appear improbable but succeed because the underlying engineering is sound. The wit comes from the gap between what your eyes expect and what your hands and ears discover.
Beauty
10
Judges visual appeal without assuming that beauty must mean polished, conventional, or expensive. Proportion, material, color, age, texture, and restraint can all create beauty in very different ways.
Sculpture
10
Considers the guitar as a three-dimensional object even when nobody is playing it. Silhouette, negative space, depth, structure, and the relationship between functional parts should reward viewing from more than one angle.
Coherence
10
Measures whether the many materials, colors, shapes, and components read as one intentional composition. A Rubÿtone can be busy, strange, or witty without looking accidental.
Relic
10
Rates the visual and emotional value of genuine age, wear, patina, scars, repairs, and evidence of earlier use. Authentic history carries more weight than artificially manufactured distress.

concept

Stage Presence
8
Measures how strongly the instrument communicates from across a room or under performance conditions. Silhouette, scale, color, movement, and unusual construction can all contribute before a note is heard.
Stands Alone
10
Judges whether the instrument feels complete and compelling without requiring a long explanation of why it matters. The story may deepen the experience, but the object should already make a persuasive case visually and musically.
Material Story
10
Considers how much meaning comes from the history and previous purpose of the materials themselves.
Transformation
10
Measures how completely the original object has been given a convincing second identity without erasing where it came from.
Boneyard Score
10
Rates how deeply the instrument embodies the practice of building from saved, secondhand, leftover, or previously overlooked materials.
Necessity
10
Asks whether each major component has a reason to be there. Extra hardware, controls, decorative pieces, and technology should contribute to function, story, balance, or visual composition.

personality

Story
10
Measures the strength of the narrative carried by the guitar’s materials, development, accidents, people, places, and decisions.
Surprise
10
Rates the number and quality of discoveries the instrument offers after the first glance.
Conversation
10
Measures how naturally the guitar makes people curious enough to ask questions.
Cool Factor
10
Captures the difficult-to-measure quality that makes an instrument desirable before every reason can be itemized.
Identity
10
Measures how immediately the guitar feels like itself rather than a variation of something more familiar.
Rubÿtone DNA
10
Rates how clearly the instrument expresses the recurring ideas behind Rubÿtone: reuse, structural invention, functional sculpture, irreverence, and serious playability.

impact

Humor
10
Measures whether the guitar contains genuine wit rather than a joke pasted onto an otherwise ordinary object.
Punchline
10
Judges whether the concept resolves into a satisfying final idea—the moment when the viewer suddenly understands why a particular object, material, or decision is there.
Disdain
10
Measures the willingness to question inherited rules about what an electric guitar is supposed to look like, contain, or be made from.
Rules
10
Rates how effectively the instrument departs from established guitar-building conventions while remaining musically and structurally convincing.
Copy Potential
10
Considers whether the central idea could inspire a new custom build without requiring an exact duplicate of the original.
Evolution
10
Measures how much useful creative territory remains in the idea after this particular guitar is finished.