Fast Edge Generator Case
thingiverse
A design for a compact PCB, along with a 9V battery featuring an SMA connector hole. This Fast Edge Generator is perfect for evaluating the bandwidth of an oscilloscope, provided that the generated edge is fast enough. This circuit can also be used to measure coax length or identify coax faults by measuring delay between initial and reflected edges. The datasheet warns against exceeding a 7V supply voltage; it's recommended to add a 5V linear regulator after the battery for added safety. Refer to this datasheet for more information: http://cva.stanford.edu/classes/cs99s/datasheets/74AC14.pdf Bandwidth equals 0.35 divided by risetime. The IC used in this design is the 74AC14, with the HC variant being slower; watch this video for a comparison: https://youtu.be/vvIuJUVV4VY For more information on this generator and its schematic, view this excellent video: https://youtu.be/9cP6w2odGUc Here's an example of the circuit's schematic: https://i1.wp.com/marcusjenkins.com/wp-content/uploads/2015/02/tdrGenerator.png
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