Projects

Do-it-yourself audio circuits and design ideas.

Phono Stages : Digital : Line Preamplfiers : Amplifiers : Headphone Circuits : Cables : Other

Phono Stages

The VSPS: Cheap, simple, versatile op-amp phono stage. Completed project. [PCB Available!]
The Phonoclone: A current input MC phonostage based on the 47 Labs Phonocube. Completed project. [PCB Available!]
6DJ8 Passive MM Phonostage: Using two 6DJ8s, in place of the op-amps above. Completed project.
An Op-amp MM Phonostage: Passive RIAA, dual stage. Completed project.

Digital Sources

A DAC of the Klones: 16-bit zero oversampling clone of the 47 Labs Progression. Completed project, but untested by me personally.

Preamplifiers

Parallel Triodes: The simplest circuit, inspired by the CJ ART. Design idea.

Amplifiers

The Gainclone: Reverse engineering the 47 Labs gaincard. Completed project.
Single-Ended 6V6 Tube Amp: How I got caught up in 'homebrew'. Completed project.
Firefly 300B DHSET monoblock: Design idea.

Headphone Circuits

The Twilight Headphone Amplifier: Single-ended MOSFET design revisited as a hybrid mu-follower. Completed project.
Single-ended MOSFET headphone driver: As featured on Headwize.com. Completed project.
Szekeres VE headphone driver: The single-ended MOSFET driver, DC coupled. Completed project.
The Headclone: The Chu Moy amp revisited. Concept stage, complete on paper.

Cables

Digital Interconnect: 75 ohm cable for SPDIF or video signal.
Mogami and Endeavour Xi Interconnects: For line level audio.
Endeavour X⁰, X, X², and X³ Speaker Cable: Cat5 twisted pair. From smallest to biggest.

Other

The Xreg Voltage Stabilizer: A high performance split supply voltage regulator for low voltage, low current circuits.
Data Tables: Decibel conversion, resistor color codes, wire resistance chart.
The Cap Rack!: Simple device to break in Black Gate capacitors without having to listen to them. Uh, completed rather silly project.

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