Hacking a FE-5680B rubidium reference clock

Sold as "1pps only", this affordable eBay find is a playground for reverse-engineering, with a few useful laboratory applications.

RubyWriteup.pdf Andre Lubbock hacks his FE-5680B. Adobe Portable Document Format - 2.12 MB - 05/02/2016 at 04:50		Preview

FE-5680A_schematics_v0.1.pdf partial schematic of Model A (useful for some hints but must be carefully checked) Adobe Portable Document Format - 28.52 kB - 05/02/2016 at 02:48		Preview