SparkFun will be closed Nov 26th and 27th for the Thanksgiving holiday. Orders placed after 2:00pm MT on the 25th will ship out Monday the 30th.


Member Since: March 26, 2011

Country: United States

  • I would like to use the clock with a circa 1968 TEK 321A (a very cute portable scope that can run on 10 D cells), which inverts the external sweep input signal. Is there any way, short of a sw mod, to invert the ch1 signal coming out of the clock board? Thanks…

No public wish lists :(