It is that time again! SparkFun Electronics will be closed Friday, January 13th for our annual inventory day. Please keep in mind that any orders placed after 2PM (Mountain Time) on Thursday, January 12th will not ship or be prepared for local pickup until we open for normal operations on Monday, January 16th. In addition, tours will resume on Friday, January 20th. Thank you for your patience!


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 :(