Re: [time-nuts] time-nuts Digest, Vol 156, Issue 35 (5065A Pwr Xfmr - Too high output voltage)

In message <1826314051.766978.1501316001...@mail.yahoo.com>, Ulf Kylenfall via time-nuts writes: >That was a brilliant idea... >...until I realized that I needed 115V for the XO quick-heaterand >we use 230V in Europe... The quick-heater isn't that important, unless you are a very

Re: [time-nuts] A look inside the DS3231

Looks like it still says "DALLAS SEMICONDUCTOR" to the left of Maxim. Maybe Maxim only wanted to change the mask enough to find some empty space to sign it? On Thu, Jul 27, 2017 at 12:31 PM, Pete Stephenson wrote: > Hi all, > > A few days ago I reported the results from letting

[time-nuts] Trimble Thunderbolt no longer determines thecorrect date

The current model Thunderbolt E #60333-50, v1.04 firmware has a last valid date on the 22nd December 2029. It is probably a good idea to specify what firmware you have in these discussions as different versions will have different properties, and some of the used Thunderbolts are quite

Re: [time-nuts] time-nuts Digest, Vol 156, Issue 35 (5065A Pwr Xfmr - Too high output voltage)

Yepp. That was a brilliant idea... ...until I realized that I needed 115V for the XO quick-heaterand we use 230V in Europe... So the SMPS splution will not work for me. I will use an old (dual primary winding) linear supply which has the advantage of providinga regulated 24V that can be used

Re: [time-nuts] A look inside the DS3231

On Thu, Jul 27, 2017, at 09:46 PM, Trent Piepho wrote: > Looks like it still says "DALLAS SEMICONDUCTOR" to the left of Maxim. > Maybe Maxim only wanted to change the mask enough to find some empty > space to sign it? It does indeed say "DALLAS SEMICONDUCTOR". I managed to get some high-quality

[time-nuts] Symmetricom X99 rubidium oscillator

Does anybody have a manual for the X99? BTW, a few days ago the Symmetricom web site was still active. It now re-directs to Microsemi. It looks like what meagre information was available is no longer available... ___ time-nuts mailing list --

Re: [time-nuts] Trimble Thunderbolt no longer determines the correct date

It happened here too. It is reporting having the 3.0 firmware. Right at the time Tom said. Fortunately I am simply using this unit for PPS and nothing else. https://i.imgur.com/sganU3F.png -Original Message- From: time-nuts [mailto:time-nuts-boun...@febo.com] On Behalf Of

Re: [time-nuts] Machining some aluminum help!

On Sat, 29 Jul 2017 12:00:02 -0400, time-nuts-requ...@febo.com wrote: > Send time-nuts mailing list submissions to > time-nuts@febo.com > > Message: 7 > Date: Fri, 28 Jul 2017 14:11:09 -0700 > From: "Gary E. Miller" > To: Discussion of precise time and frequency

[time-nuts] Thunderbolt rollover glitch

It looks like it took three hours for the effects of the rollover glitch to mostly settle out. BTW, if you only use Lady Heather with a Thunderbolt, you can force the rollover state from the command line or heather.cfg file by using the /ro command line option. If you do that you won't have

Re: [time-nuts] Trimble Thunderbolt no longer determines thecorrect date

FWIW, the SkyTraq receivers have the notion of a “UTC reference date” which allows the 1024 week window to roll forward indefinitely as long as you update that value once in a while. I’ve written code in my GPS Clock to update the reference date once a year as well as update the default GPS-UTC

Re: [time-nuts] Machining some aluminum help!

Kerosine is a better tap lube for Aluminum as it is more persistent and less flammable Content by Scott Typos by Siri > On Jul 29, 2017, at 6:41 PM, Joseph Gwinn wrote: > >> On Sat, 29 Jul 2017 12:00:02 -0400, time-nuts-requ...@febo.com wrote: >> Send time-nuts mailing

Re: [time-nuts] Machining some aluminum help!

Kerosene as the cutting fluid and use Acetone to clean up the kerosene afterwards. __ Clay Autery, KY5G MONTAC Enterprises (318) 518-1389 On 7/29/2017 7:57 PM, Scott McGrath wrote: > Kerosine is a better tap lube for Aluminum as it is more persistent and less > flammable > >

Re: [time-nuts] Trimble Thunderbolt no longer determines the correct date

Caught it. Some Trimble Thunderbolt TBoltmon.exe screen shots attached: GPS WN 1959 TOW 604799 (July 29, 2017 23:59:41) advanced to GPS WN 936 TOW 0 (December 13, 1997) instead of GPS WN 1960 TOW 0 (July 29, 2017 23:59:42). 1960 - 936 is 1024 weeks, as advertised for this version of the TBolt

[time-nuts] Thunderbolt rollover glitch

Attached is a plot of Thunderbolt data before and after the event. 2 seconds after rollover the Thunderbolt reported it was re-initializing the loop filter and 4 seconds after the event it reported is was starting to phase lock the 1PPS. The DAC jumped 0.023V V which is around 75 mHz of