MEP EP#217: Frequency Stability Dependability

March 25, 2020

MEP EP#217: Frequency Stability Dependability

Parker

• Reverse Engineering Tools?
  • Calipers
  • Edge profile gauge
  • Dial indicator with radius gauge attachment
  • Angle finder/gauge
  • Good Scanner?
• 3D printer improvements for the Monoprice Ultimate Maker
  • • Stuff it already has
      • Internal RaspPi running octoprint
      • MicroSwiss metal hot end
      • Enclosure
      • BLTouch
    • Better cable management
    • Fixed print surface improvements
    • Fan upgrades
    • Switch to a faster bed heater?
    • Lubrication suggestions?

Stephen

• Hacking a frequency counter
  • 2 new designs at work that are highly dependent on frequency stability
  • 3156 Amazon wonder
  • Where and how to read values
  • Arduino solution?
• Simulation: Arbitrary sources
  • • Adding functions to your voltage and current sources
    • VCA and controls
    • Non-linear circuits

Rapid Fire Opinion

• A NES Motherboard For The Open Source Generation
  • All but two parts are readily available
    • CIC lockout chip
  • UA6527 cpu
    • Reversed pulse wave from the original cpu
    • NES Clones Reversed Duty Cycles - Why you should Reject them