Hi there all, I'm cleaning out my workshop, and so am selling some of my time stuff...
1: Datum FTS 4060 Cesium Time and Frequency Standard https://photos.app.goo.gl/m6mAMCkvLmbG4aKo7 I left this unplugged for ~4 months (yes, I know, I know), plugged it in, and it came up and got lock in ~45 minutes. Has relatively new backup batteries (replaced last year). Works perfectly, but could do with a new clip for holding the door closed (https://photos.app.goo.gl/pMtXAxfy1M5ztdHj9). As with many of these, if the battery is very low when it is first connected, the battery charger in it sometimes makes a GFCI trip.... 2: Two Datum PRS-50 Cesium Beam Primary Reference Source https://photos.app.goo.gl/UKkZJZYyCpGx6ipz9 I have two of these - one of them works, one of them doesn't (never locks, and the ionizer supply voltage is low - apparently this is often bad capacitors). Note that these are designed to mount in a 19" rack, and be powered from -48V. Comes with two (external) -48V supplies. 3: Symmetricom S250 NTP Network Time Server https://photos.app.goo.gl/74Uvu8wup6H9rVtt7 https://photos.app.goo.gl/gq4Y5cD8KdzyziWa7 Note: This is missing rack ears, and the edge of the case is damaged where some idiot tried to remove it from the rack without first unscrewing the ear... This is running Version 1.36 (the version that supports IPv6), and comes with the antenna. I also retrofitted a Rubidium oscillator for better holdover (Symmetricom X72). This was added in aftermarket, and has a small arduino to invert the lock signal. 4: TrueTime XL-AK https://photos.app.goo.gl/tJYtrG97oAoNxqtP7 I only played with this a little bit, and the firmware is sufficiently old that it doesn't know about the GPS rollover, so it thinks it is 1999 or something. It does not come with an antenna, but works with the standard 12V ones from Amazon. It has outputs for 10Mhz, 10Mpps, 1PPs, and one labeled IRIG-B (which I have not tested)... I'm asking $3,000 for everything, and want it to go as a set. As they are big and heavy (and may or may not count as hazmat for shipping), you will need to pick up in Northern Virginia (near Washington Dulles airport). Please reply (off-list) with any questions, etc. I also have a bunch of laser stuff which I'm also getting rid of -- this is engineering stuff from when Lightwave Electronics was acquired by JDS Uniphase -- most of this is DPSS / pumped diode stuff. Mostly non-working / needs alignment / etc. W -- I don't think the execution is relevant when it was obviously a bad idea in the first place. This is like putting rabid weasels in your pants, and later expressing regret at having chosen those particular rabid weasels and that pair of pants. ---maf _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
