[time-nuts] Success replacing Oncore VP with Synergy SR-6Tf ?

Greetings, I've found various posts in the list archive since about 2012 suggesting that one could drop a Synergy SSR-6Tf in to replace an Oncore VP board, or about planning to do so (and others about replacing an M12* with an SSR-6Tr[u]). But if anybody has simply posted, "I dropped in an

Re: [time-nuts] Austron 2110 schematics?

Hi Jim; These are encapsulated blocks two 48>5 and one 48>24 - I know the 24 is made by Victor. Pretty easy to replace. I up-dated my 2110 with a high contrast LED backlite display. Easy to do when you have it apart. Cheers; Tom Knox SR Test and Measurement Engineer Ascent Concepts and

Re: [time-nuts] Austron 2110 schematics?

Jim, For the power supply see: http://leapsecond.com/museum/au2110b/ps.htm Let me know if you need more pages from the manual. For sample LCD readings see: http://leapsecond.com/museum/au2110b/lcd.htm /tvb On 7/5/2020 1:34 PM, AC0XU (Jim) wrote: Time Nuts- I have an Austron 2110 with a

[time-nuts] Austron 2110 schematics?

Time Nuts- I have an Austron 2110 with a severely toasted power controller board. Probably not repairable. I plan to build a substitute with a more modern design. Does anyway have schematics? I noticed correspondence between Magnus Danielson and Harald Hauglin some years ago. Did the manula

Re: [time-nuts] 5071A

Bill, A 5071A will never go solid-green "continuous operation" on its own. That solid-green state is set manually from the blinking-green state, by design. This prevents you from seeing green, having a short power failure overnight, and then you come back in the morning and see green and

Re: [time-nuts] 5071A

Hi My recollection is that if power is cycled, it drops out of “continuous operation mode”. There *might* even be BBC footage documenting this … :) Simply put, all of these devices ( 5071 and the other HP atomic standards I have seen) *only* go into continuous operation when you push a button.

[time-nuts] 5071A

If the power is cycled on one of these will it always go into attention mode yellow until cleared? Or will it go green continuous operation all in it's own? If one of these has been on the shelf a while is it common for one even with a good tube to report attention yellow for a while until tube

Re: [time-nuts] HP-5372A and HP-5372A operation with no CRT display.

Hi Lester, Good to hear your progress. So, I gather that you managed to successfully repair it, and it was a capacitor issue that I also had experienced. Which caps did fail for you? I think I recall a 50 uF bipolar cap. Cheers, Magnus On 2020-07-05 17:51, Lester Veenstra via time-nuts wrote:

[time-nuts] ESE ES-188 Master Clock : Repair

ESE ES-188 Master Clock : Repair Another ESE Master Clock bargain ($100) arrived this summer on the time-nuts bench, from an eBay dumpster diver/flipper. The ES-188 NTP Referenced Master Clock/Time Code Generator. The clock’s internal TCXO is synchronized via the Internet (NTP). The ES-188

[time-nuts] HP-5372A and HP-5372A operation with no CRT display.

The repair bench is up and successful on repairing the A17 video driver boards. This involved replacing bad caps. If anyone has a bad A17 board, particularly ones with obvious blown (literally) caps, I would be happy to repair and bench test. No cost other than send it to me with a prepaid, pre

Re: [time-nuts] Raspberry Pi NTP server

Andrew, outlier rejection in NTPD is not the most stable thing in the world. You have two local refclocks that are consistently 200ms off from the "rest of the world" and this is 10 times larger than the round trip delay to the rest of the world. But the local stratum 0 refclock poll interval is

Re: [time-nuts] Raspberry Pi NTP server

On 03/07/2020 13:56, Andrew Hancock wrote: But here's the weird thing, it starts out okay, from what I can tell, and I get 377 for both GPSD and PPS remote refid st t when poll reach delay offset jitter

Re: [time-nuts] Raspberry Pi NTP server

On 7/3/20 8:56 AM, Andrew Hancock wrote: GPS 3D fix is fine, using an outside aerial, there are no issues here reported with cgps -s or gpsmon, but recently I've racked mounted all my PIs in a network rack. Have you ruled out thermal issues with the Pi being in a rack?

Re: [time-nuts] Raspberry Pi NTP server

Thanks David I may try that list. It is odd, it works fine, and then craps out And then it's happy again... Andrew -Original Message- From: time-nuts On Behalf Of David J Taylor via time-nuts Sent: 03 July 2020 18:34 To: time-nuts@lists.febo.com Cc: David J Taylor Subject: Re:

Re: [time-nuts] Raspberry Pi NTP server

Thanks Hal I could try and get a wire onto the GPIO, with a lot of work... Andrew -Original Message- From: time-nuts On Behalf Of Hal Murray Sent: 03 July 2020 18:45 To: Discussion of precise time and frequency measurement Cc: hmur...@megapathdsl.net Subject: Re: [time-nuts]