Re: [time-nuts] Lady Heather leap second display

2015-06-24 Thread Tom Harris
Sounds like my sort of party. I went to a similar party, the drinks were all served in laboratory glassware and the host did his party trick of drinking liquid nitrogen and rolling it around his mouth so that it did not burn him, and then spitting it out onto the floor where it immediately evaporat

Re: [time-nuts] magnetic electronic components

2015-06-24 Thread Jim Lux
On 6/23/15 4:02 PM, Tim Shoppa wrote: Yes, for ferrites, many (all?) of the Amidon FT-xxx parts are perfectly standard Fair-Rite cores available from full-line distributors like Mouser, Newark, etc. Iron powder cores are not stocked by any of the standard distributors that I know of, but kitsand

Re: [time-nuts] potential source for cheap copy of labview

2015-06-24 Thread Don Latham
If you'll put an arduino in as a controller, Makerrplot is a really nice interface, and really cost effective and easy to use. Can also be used on 'net devices and rs232. Robot Basic will do rs232 and 'net and is free. Don paul swed > Have the eval license up and operating with the NI simple LED

[time-nuts] windows and leap seconds

2015-06-24 Thread Jim Lux
https://support.microsoft.com/en-us/kb/909614 basically: ignore the leap second, so your computer is "fast" relative to UTC, and next time you resynchronize time it adjusts Windows, these days, runs NTP http://blogs.msdn.com/b/mthree/archive/2015/01/08/leap-seconds-010815.aspx http://blogs.ms

Re: [time-nuts] windows and leap seconds

2015-06-24 Thread David J Taylor
From: Jim Lux https://support.microsoft.com/en-us/kb/909614 basically: ignore the leap second, so your computer is "fast" relative to UTC, and next time you resynchronize time it adjusts Windows, these days, runs NTP http://blogs.msdn.com/b/mthree/archive/2015/01/08/leap-seconds-010815.aspx ht

Re: [time-nuts] 53230A noise floor

2015-06-24 Thread Anders Wallin
I finally had time to compare the 53230A CONT (resolution-enhanced, aka lambda-counting) and RCON (undocumented! reciprocal continuous counting, aka pi-counting) modes, and wrote down some notes: http://www.anderswallin.net/2015/06/cont-vs-rcon-mode-on-the-53230a-frequency-counter/ comments on my

[time-nuts] Two V(in)s walk into a bar...

2015-06-24 Thread Neil Schroeder
Lets take a hypothetical device, like specifically a PRS10, but could be any time/freq device like a PLL or an amplifier or all of these. Isolating power supplies with some dexterity can greatly improve noise control, and less peformance related, can help us protect very very expensive circuits fr

Re: [time-nuts] windows and leap seconds

2015-06-24 Thread Tom Harris
Hilarious note on the bottom of the document: This is a "FAST PUBLISH" article created directly from within the Microsoft support organization. The information contained herein is provided as-is in response to emerging issues. As a result of the speed in making it available, the materials may inc