Pulse Stretcher for Lockin Amplifier

Schematic and Board Layouts (PDFs):
  • Schematic
  • Silkscreen
  • silkscreen & copper
  • Solder
  • Solder Mirrored
  • Drill image and label for enclosure

    Express PCB Plus board layout and Schematic (.rrb & .sch):
    Note: I made the boards. If you send them out to be made you
    need to increase the ID for all the through hole parts.
  • pulse_stretch_lockin.rrb
  • pulse_stretch_lockin.sch
  • pulse_stretch_lockin_drill_label.rrb

    File explaining the design and construction:
  • readme.txt

    Photos and final assembly (original version with fixes):
  • Front view of box
  • Bottom of PCB
  • Side view of top of PCB
  • Top view of top of PCB
  • Inside view of enclosure showing milled edge
  • Inside view of enclosure with PCB installed
  • Screen shot showing input pulse and propigation delay of output pulse
  • Screen shot showing output pulse adjusted for 5us width