6225AXXSZS-DC3, APA-102C-NEW-260, Comitup, CubeSat, DEFCON, Design Contest Trophy, electronics podcast, Glasgow, guizero, IoT Compressor, Linear power supply design, MacroFab, macrofab engineering podcast, PCB Repairing, PinoTaur, PX3AN2BS250PAAAX, whisky
engineering podcast



The MacroFab Engineering Podcast Design Contest sponsored by Mouser Electronics currently going on! The topic is Useless Machines! We have cash prizes up to $1000 for the winners. The deadline is August 10th and it is closing fast! More information can be found on here!


  • Trophy Software?
  • PinoTaur
    • LED boards using the APA-102C-NEW-260
      • Make them low cost and easy to assemble
    • Build up 2 more REV1 for testing purposes
  • Next project Sponsored by Mouser
    • IoT Compressor revitalization
    • Started on MEP EP#68
    • Uses a Particle Photon
    • PX3AN2BS250PAAAX
      • HoneyWell Pressure Transducer
    • 6225AXXSZS-DC3
    • Need a new enclosure that is industrial and ruggedized


  • Linear power supply design
    • Roz transformer and the appropriate taps
    • How do you estimate the dc output voltage given a transformer spec?
    • Vdc = 2*Vmax/pi
    • Power supplies for valve amplifiers Page 38
      • Very cool chart for determining DC output voltage from rectifiers with series resistance
    • static/file/5c007.pdf
  • Drilling and tapping the trophy
      • Just got the parts day of recording


  • Glasgow tongue has a taste for whisky
    • Glasgow University researchers have made a bionic tongue which can tell the difference between Glenfiddich, Laphroaig, Glen Marnoch and between different vintages of each brand sampled at the ages 12, 15 and 18.
    • Sub-microscopic slices of the two metals, arranged in a checkerboard pattern, act as the tongue’s tastebuds despite being 500x smaller than the tastebuds on a human tongue.
    • The researchers poured samples of whisky over the bionic tastebuds and measured how they absorb light while submerged.
  • So, you want to build a CubeSat? 
  •  How to Master PCB Repairs and Why You Should
    • Hardest thing about repairing circuit boards is knowing what the part was before it let the smoke out!


Special thanks to whixr over at Tymkrs for the intro and outro!