Category: askJOHN

  • How to email cell phone photos
  • Photos tips for cell-phone cameras
  • How to guide a rocket using servos
  • On the batteries John prefers using
  • $14 for postage is a rip off!
  • NPL, ProModeler, and steering lasers!
  • Low buck trick to stretch mask use
  • On the value of double-filtration
  • When’s the next super special sale?
  • Rip Van Winkle, on returning to RC
  • About pots vs Hall Effect sensors
  • Ubiquitous in the workshop