Kevin, Those Masterclock units sold out yesterday evening. The HS units had an OCXO. I have no idea what the seller’s inclusion of “K60” in auction referenced. Freescale‘s Kinetics K60 ARM processor is used in some NTP appliances. https://cdn.sparkfun.com/assets/c/c/8/e/d/52a8c005757b7f4b738b456c.pdf greg, w9gb == Thu, 16 Apr 2020 17:02:54 -0700 Kevin Schuchmann <kschuchm@gmail.com> Subject: Re: [time-nuts] Need a Project? I wonder what the "K60" variant is for the NTP100-GPS-HS, he has pictures with and without? the K60 and the manual does not mention it. Kevin wa7fwf == > On 4/16/2020 1:56 PM, Gregory Beat via time-nuts wrote: > Two interesting ?time appliances? on eBay this week, > for those looking for a Time-nuts project. > > Spectracom 8183 NetClock/GPS (Florida reseller) > Looks like it survived a few disasters, TCXO inside, 10 MHz > eBay auction: # 254570265231 > Manual > https://www.orolia.com/sites/default/files/document-files/8183_manual.pdf > > MasterClock NTP100 and NTP100-GPS-HS (high stability) > eBay auction: # 264701970729 > NTP100 Manual (2016), page 5 outlines various NTP100 model differences > https://static1.squarespace.com/static/55f05c0ce4b03bbf99b13c15/t/57f41413ff7c50a82fdf7d26/1475613737763/NTP100+user+manual.pdf > > greg > w9gb