A New Business Model for the Music Industry
How record companies can actually win big in the next couple decades.
A small update.

On ANWR
Thoughts on oil drilling in Alaska.

A Modest Proposal to Improve the National Energy Policy
And substantially reduce energy waste and the terrorist threat.

A Discrete FET Guitar Preamp
Don's famous FET preamp.

An FET Preamp Cable
A phantom-powered preamp built into a 1/4-inch phone plug.

Pickups Part 1: Response Effects of Guitar Pickup Position and Width
Analysis, equations and plots of pickup response curves.

Pickups Part 2: Response Effects of Guitar Pickup Mixing
Analysis, equations and response plots of mixes of pickups.

Pickups Part 3: Pickup Response Demonstration Applet
Try it out!  Move pickups around, draw pretty curves.

The Quadrature Trapezoid Voltage Controlled Oscillator
A new oscillator topology features quadrature waveform outputs and thru-zero FM.

Voltage Controlled Duty Cycle Sawtooth Circuit
Some quick notes on a circuit I came up that can morph from a sawtooth to a triangle to a reverse sawtooth with a control voltage.

An Interpolating Scanner Circuit
A new approach to building an interpolating scanner.

Analog Synthesizer Resources
My favorite synthesizer design links.  General, historical, manufacturers, design, schematics, research.

ARP Synthesizers: ARP Resources
A collection of resources for ARP Synthesizers, including the ARP/Rhodes Chroma.

ARP Synthesizers: ARP Patents
Reviews and tasty commentary about ARP-related patents.

ARP/Rhodes Chroma: Upgrading the Power Supply ("Nuclear Powered Chroma")
My adventures replacing a Rhodes Chroma power supply with a modern switching unit.

Moog Synthesizers: Moog Resources
A collection of Moog resources.

Moog Synthesizers: Moog Patents
Reviews and commentary on patents by Robert Moog and patents for Moog products.

Don's Mellotron Page
Mellotron resources, notes, projects, the Mellotronists mailing list and the tale of a restored M400 with Mike Pinder's autograph.

Mellotron/Chamberlin Patent Reviews
Reviews of the Harry Chamberlin Mellotron Patents, as well as the Birotron patents.

Hohner Clavinet Resources
A collection of resources for the Hohner Clavinet.