[time-nuts] Special connector for Symmetricom X72 rubidium standard

Mark Sims holrum at hotmail.com
Fri Aug 18 22:58:20 EDT 2017

The Mark II  (groan)...  changed power connector to a 2.1mm barrel jack,  added a 15uF or so filter cap,  added a PPS LED,  added a separate ground test point,  added series damping resistors for the ACMOS and FXO outputs (can be omitted to isolate these signals from the cable), etc.
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