EP#108: Crazy Transistor Contraptions

• Stephen
  • Midi Woes
  • Atleast the Teensy is fast
• Parker
  • DAC testing update
    • Interesting results looking at the spectrum analysis of the DACs
    • Film caps suppress harmonics better but let more low end frequency through
    • "Audio" grade parts have a higher response over the frequency band
    • All the DAC load outs have a flat frequency response
    • Blind testing resulted in listeners picking the cheaper passive load out for the DAC saying it sounded more "spacious"/"open"/"dynamic" compared to the film caps.
• Rapid Fire Opinion R.F.O.
  • Discrete Pong Project Goes Big, Adds a Player
    • Two-player color Pong game with audio completely from discrete components
    • EEVBlog build thread
  • Stealth Winners of the new iPhoneX
    • PCB Sandwich
    • mSAP
      • modified semi-additive processes for PCB assembly
      • Can get traces down to .6 to .4mils
      • PDF with good diagrams on how mSAP works
  • Is coding required for Electrical Engineering?
    • Get on our Slack channel and join the conversation!

Tags: Coding in Electrical Engineering, electronics podcast, MacroFab, macrofab engineering podcast, MEP, MIDI, mSAP, PCB Sandwich, PCM5122, Podcast, Pong, Teensy