EP#368: The Thermal Hum of the Universe

News

• May 4th, Bringing back the MacroFab meetup.
• Stephen Kraig looking for a job. Email stephen.l.kraig@gmail.com

Another thought on ground planes

• Finally tried an honest to god ground plane on an amp and the results are what you would expect.
• Realizations
  • Component placement matters as much if not more than trace routing
    • Pool analogy
  • Understanding current is key
• Trade offs
  • Makes ground easier while making signaling harder
  • It is possible to have too much ground

Venting of Sealed (washable) Relays (that have vents provided)

• TE Connectivity application note about sealed relays
• Unless specifically advised otherwise by TE Engineering, all sealed relays (that have a venting means provided by the manufacturer) must be vented after PCB assembly and cleaning, but before use electrically, in order for published ratings to remain applicable.

Dumb Aviation plug

• Stephen bought GX16 aviation plugs
• Need Gx20
• What does the number mean? The mounting hole size….