News:

• May 9 2016 Guitar booster
• November 14 2015 S/PDIF receiver with DIR9001
• November 8 2015 Power supply with a MYRRA 10VA transformer
• September 10 2015 TPA3116D2 audio amplifier
• July 8 2015 USB - I2S converter with AT32UC3A3256
• June 24 2015 DAC with PCM1702 circuits
• June 2 2015 Added audio shapes of PCM1702 DAC
• March 16 2015 DAC with AD1865 circuit
• March 14 2015 HiFi headphone amplifier with TPA6120A2
• November 7 2014 Audio DAC shapes
• November 4 2014 Modular audio system 2.0
• November 4 2014 HiFi headphone amplifier with LME49600
• November 4 2014 Power supply with TALEMA 10VA transformer
• November 4 2014 DAC with PCM5102A circuit
• November 4 2014 USB - I2S converter with PCM2706C
• May 13 2014 added schematics of CFL OSRAM DULUX STAR 11W
• March 25 2014 Class A headphone amplifier by Kevin Gilmore
• December 23 2013 Relay timer
• May 2 2013 Wireless digital audio
• March 18 2013 Guitar control
• September 16 2012 Talema 10VA transformer board
• August 8 2012 EI30 Transformer board
• June 30 2012 TPA6120 headphone amplifier