Embedded web server with the ESP8266 Wi-Fi chip

The big news in embedded wireless is the ESP8266 Wi-Fi chip that costs less than $4. Prior to this, the only economical way to do a 2.4 GHz link was with something like the nRF24L01 chip from Nordic Semiconductor. The ESP8266 has an embedded ...Read More

Android accessory development Kit

Now you can create your own Android-based hardware devices. NEBULIX¬† recently acquired a number of Arduino DUE microcontroller boards, which are built around the ARM AT91SAM Cortex MCU chip. With the DUE’s second host USB port, it is compatible with Google’s ADK which can ...Read More

24-bit 192-KHz AK4396 DAC

Popular in the DIY realm, these high-resolution digital to analog converter (DAC) boards are perfect for translating HD music tracks on your computer transport to standard analog audio inputs. Although the board is called the Mini 2496, it can handle 24 bits at up ...Read More

NEBULIX ATMega328 MCU board

The NEBULIX Arduino, based on the Severino single-sided reference design. “This is my original prototype single-sided Arduino board. We’ve used these for various general-purpose controller projects.” says NEBULIX creative director, Duncan McAllister. The single-sided design is inexpensive and easy to produce and with an ...Read More

McAllister featured in magazine Down Under

We were recently contacted by Jez Ford, editor of Australia Sound+Image magazine to tell him about Duncan McAllister’s restoration of two classic Marantz tube preamplifiers. The two-page spread ran in November and talks about the philosophy and techniques behind refurbishing this legendary piece of ...Read More

Nordic Semi 2.4 Ghz. wireless link

NEBULIX has always been actively involved in wireless technologies. A new project that we’re working on is a wireless data link to connect a network of arduino MCU boards. The remote sensor boards are polled by a central controller that collects bursts of data ...Read More

Clone the Neumann U47 microphone

Favoured by artists like Elvis Presley, Frank Sinatra and The Beatles, the venerable Neumann U47 studio microphone ushered in a new era of music recording and broadcast. Pictured here is the studio condenser microphone that I converted from transistorized to tube operation. <Click on ...Read More

DIY headphone amp packs a punch

Ah, nothing like the sweet sound of good headphones, up close and personal with the best of both worlds – a 12AU7 tube front end with dual IRF510 power MOSFETs as the drivers. Elegant sound that packs a punch, and it runs on 12 ...Read More

Knight KB-85 amplifier refurb

The Knight KB-85 amplifier was perhaps one of the best sounding kit amps ever made. <Click on any picture for detailed view==> Duncan McAllister spent a year to completely restore this vintage tube amplifier to its former glory. The unit is based on the ...Read More