Hardware

• Audio
  • TPA3116D2 audio amplifier September 10 2015 [NEW]
  • Audio DAC shapes November 7 2014 (Update June 2 2015) [NEW]
  • Modular audio system 2.0
    • HiFi headphone amplifier with TPA6120A2 March 14 2015
    • HiFi headphone amplifier with LME49600 November 4 2014
    • Power supply with TALEMA 10VA transformer November 4 2014
    • Power supply with MYRRA 10VA transformer November 8 2015 [NEW]
    • DAC with PCM5102A circuit November 4 2014
    • DAC with AD1865 circuit March 16 2015
    • DAC with PCM1702 circuits June 24 2015 [NEW]
    • USB - I2S converter with PCM2706C November 4 2014
    • USB - I2S converter with AT32UC3A3256 July 8 2015 [NEW]
    • S/PDIF receiver with DIR9001 November 14 2015 [NEW]
  • USB dongle with PCM2912 September 19 2011
  • USB soundcard with PCM2902 May 31 2010
  • Building of LeachAmp 200W amplifier May 15 2006 (Update February 2 2007, August 19 2009, March 4 2010)
  • USB audio DAC with PCM2902 May 13 2007 (Update August 6 2008)
  • SPDIF audio DAC with CS8416 and TDA1543 December 1 2008 (Update January 25 2009)
  • Clipping indicator October 14 2009
  • USB audio DAC with PCM2704 October 16 2009 (Update November 29 2009)
  • Modular audio DAC
    • DIR9001 S/PDIF decoder January 8 2010 (Update March 8 2010, June 25 2010, February 26 2011, March 29 2011)
    • DAC with TDA1543 January 8 2010
    • DAC with ten TDA1543 circuits January 29 2010 (Update March 29 2011)
    • DAC with PCM1794A February 28 2010
    • DAC with AD1865 May 18 2010
    • CS8416 S/PDIF decoder September 27 2010 (Update February 26 2011, March 29 2011)
    • AD1865 DAC with I2S input and voltage output February 13 2011
    • USB DAC with PCM2706 and I2S output April 6 2011
    • I2S bus isolator board April 7 2011
    • DAC with two PCM1704 circuits December 26 2011
    • DAC with WM8740 March 25 2012
    • Talema 10VA transformer board September 16 2012
  • ALPS potentiometer board March 30 2011
  • Stereo width controller April 6 2012
  • TPA6120 headphone amplifier June 30 2012
  • Guitar control March 18 2013
  • Guitar booster May 9 2016 [NEW]
  • Wireless digital audio May 2 2013
  • Class A headphone amplifier by Kevin Gilmore March 25 2014
• Amiga
  • Adaptor for 4 joysticks
  • Convertor RGB to monochrome
  • Adaptor Amiga RGB to Scart
  • Schematics of Amiga mouse October 10 1998
• Computer fans
  • 4-Wire fans April 22 2007 (Update October 13 2008)
• Infrared
  • IrDA transceiver for desktop PC (Update April 6 2003)
  • RONJA - optical datalink July 20 2001
• Compact fluorescent lamps
  • Description, schematics and photos of lamps - (Update October 13 2008, March 24 2010, October 22 2010, March 5 2012, May 13 2014)
• Other
  • Decoration light June 28 2010
  • SCSI connectors
  • Adaptor for Casio diary
  • Parallel laplink cable
  • Line circuit of SupraFaxmodem336E September 21 1999
  • Cable for a KODAK DC240 digital camera January 27 2000
  • Relay timer December 23 2013
• Power supplies
  • 200W PC ATX October 22 1998 (Update June 6 2003)
  • Secondary supply of ATX MXR-250P June 6 2003
  • Dual power supply April 6 2012