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