[time-nuts] Useful links pertaining to FE-5680A
eBay's nichegeek sent me this links. I have not yet checked them out. http://www.vectron.com/products/ocxo/C4550A2-0275.pdf http://www.leapsecond.com/museum/fei5650a/ http://www.vk3um.com/Reference Data/Reference Locking the IC-910.pdf ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Thunderbolt GPS TimeKeeper
Where does one find Trimble Timekeeper software? and documentation on how to use it? Thanks, Paul On 1/22/2012 3:06 PM, Dennis Czelusniak wrote: As of 01 January 2012 all three of my systems began to Sync.the year incorrectly. I am using Trimble TimeKeeper ver. 1.02. The year 2020 now appears on my PC's, the time however is correct. I use Windows NT, XP, and Vista. The Date is correct when displayed in TBoltMon. I reinstalled the software on a spare PC that is not connected to my network, same results. Is there a fix somewhere or am I overlooking something obvious? Regards, Dennis WD8DCJ ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] 15 volt power supply for FE-5680A on eBay
On Wed, Jan 18, 2012 at 6:25 PM, Chris Albertson albertson.ch...@gmail.comwrote: What I bought is a 15V open frame supply from allelectronics.com for $11.50. It turned out to be a very high quality power supply (Digikey has the same unit for almost $40) This PS does not drop volts even with the line input and load well out of spec (I tested 63VAC input to a 4A load briefly) ... This is the one I bought http://www.allelectronics.com/make-a-store/item/PS-152/15VDC-2.7A-POWER-SUPPLY/1.html I ordered two of the above mentioned power supplies. They arrived today. I tested both of them. Neither holds 15 volts. At 2 amps they are down to 14 volts. Even at 1 amp they are down to 14.5 vdc. Paul ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] 15 volt power supply for FE-5680A on eBay
I'll have to set up the test again and measure voltage drop across the leads and the voltage directly at the power supply supply terminals. On 1/21/2012 5:34 PM, David wrote: On Sat, 21 Jan 2012 17:20:39 -0600, Paul F. Sehorne p...@sehorne.org wrote: On Wed, Jan 18, 2012 at 6:25 PM, Chris Albertson albertson.ch...@gmail.comwrote: What I bought is a 15V open frame supply from allelectronics.com for $11.50. It turned out to be a very high quality power supply (Digikey has the same unit for almost $40) This PS does not drop volts even with the line input and load well out of spec (I tested 63VAC input to a 4A load briefly) ... This is the one I bought http://www.allelectronics.com/make-a-store/item/PS-152/15VDC-2.7A-POWER-SUPPLY/1.html I ordered two of the above mentioned power supplies. They arrived today. I tested both of them. Neither holds 15 volts. At 2 amps they are down to 14 volts. Even at 1 amp they are down to 14.5 vdc. The total regulation specification is +/- 5% so within 14.25 to 15.75 volts under all conditions. How high was your lead resistance? http://iccnexergy.com/elpac/medical-power-supplies/open-frame/mta040/ ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] 15 volt power supply for FE-5680A on eBay
Good that you pointed that out to me. I ran the test again. The voltage at the power supply terminals never dropped below 15.25 vdc with up to 3 amp load applied. When will I learn... darn those clip leads got me... again. On 1/21/2012 5:34 PM, David wrote: The total regulation specification is +/- 5% so within 14.25 to 15.75 volts under all conditions. How high was your lead resistance? ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] 15 volt power supply for FE-5680A on eBay
Correcting link http://www.ko4bb.com/dokuwiki/doku.php On 1/20/2012 10:47 AM, shali...@gmail.com wrote: I started a wiki page with the pin-out information ans was planning to copy the most interesting posts, but I do not have one, so the incentive is pretty low at this point. If you want to do it, be my guest. http://wwwmko4bb.com/dokuwiki/doku.php Didier KO4BB ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] FE-5680A worked for only 5 minutes.
I powered up the second unit. It has been running just fine for an hour now. The only difference I noted is that the initial current was only 1.4 amp vs 1.8 on the other one. However, I set my power supply to 16.0 volts; no other difference. After warmup the current settled at ~700 ma and the 5vdc current at ~80 ma. On 1/19/2012 1:15 PM, Paul F. Sehorne wrote: I received my two FE-5680As late yesterday. This morning I hooked one of them up. It locked on in a couple of minutes and at about five minutes quick working. There is a smell of something burnt inside. I have not opened the case to investigate the damage. I had the unit attached to two current limited bench power supplies. One power supply was set at +16.1 vdc and the other at +5.0 vdc. When the trace on the scope went away I noticed the +15 vdc power supply had gone into current limit mode at 2 amps. The +5 vdc current had dropped from ~80ma to about ~60. Before the failure the +15 vdc supply showed ~1.8 amp during the first minute or two and then dropped to ~700 ma. While it was working it worked fine and was very near my GPSDO in frequency. The scope trace was moving 5ns in about 20 seconds. I got no further than this when the unit stopped working. I have not powered up the second unit yet; preferring instead to contact nichegeek first. Paul ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] FE-5680A worked for only 5 minutes.
nichegeek and I are exchanging emails. nichegeek has been very responsive, but before making a decision on how to handle this he asked me to power up the second one and report back. On 1/20/2012 1:37 PM, paul swed wrote: Yup after things get settled those are the right currents. So try the other and see what happens at the higher voltage. However if it should happen to work you have a very marginal unit. I would contact the seller asap or skip the test and just ask for a return. Regards Paul. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
[time-nuts] FE-5680A worked for only 5 minutes.
I received my two FE-5680As late yesterday. This morning I hooked one of them up. It locked on in a couple of minutes and at about five minutes quick working. There is a smell of something burnt inside. I have not opened the case to investigate the damage. I had the unit attached to two current limited bench power supplies. One power supply was set at +16.1 vdc and the other at +5.0 vdc. When the trace on the scope went away I noticed the +15 vdc power supply had gone into current limit mode at 2 amps. The +5 vdc current had dropped from ~80ma to about ~60. Before the failure the +15 vdc supply showed ~1.8 amp during the first minute or two and then dropped to ~700 ma. While it was working it worked fine and was very near my GPSDO in frequency. The scope trace was moving 5ns in about 20 seconds. I got no further than this when the unit stopped working. I have not powered up the second unit yet; preferring instead to contact nichegeek first. Paul ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
[time-nuts] 15 volt power supply for FE-5680A on eBay
How important is the 15vdc at the initial startup 2amp, and then how important at the .7 amp settled rate? I just received two of these http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemitem=280439877318 Unloaded voltage is ~15.5vdc. At 700 ma voltage drops to 14.3 volts and with 2 amp load drops to 13.3 volts with a 2 amp load (and to 10 volts with a 5 amp load). Supposedly rated at 6 amps. I have only checked one, have not broken the packaging on the second one assuming its performance will be similar. Will this be a problem? Paul ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
[time-nuts] FE-5680A - screws in my unit are 1/16 hex
Peter, After your message below, I took another look at the screws in my FE-5680A. EGG ON MY FACE. They are hex and 1/16 works just fine. I also tried 1.5mm (too small) and 2mm (too large). Paul On 1/18/2012 9:29 PM, Peter Gottlieb wrote: Looked at mine with a loupe as well and they are definitely hex. That would seem to establish that they use at least two different kinds of fasteners. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
[time-nuts] FE-5680A what is the size of the Torx??
I received my two FE-5680s today. The first thing I want to do is inspect the insides. The smallest Torx I have is a too-big T-8. What size is needed? I'll need to do an internet search for the correct size. Thanks, Paul ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] FE-5680A what is the size of the Torx??
Nope. Looked at them with a jeweler's loupe. They are Torx. On 1/17/2012 5:13 PM, Peter Gottlieb wrote: Most likely they are 1/16 hex. On 01/17/12, Chris Albertsonalbertson.ch...@gmail.com wrote: No need to buy a tool. They drill out really easy but you can also simply punch them out. There are no nuts on the back. The screws bite directly into the fiberglass PCB. Mine were T-16 but many people report they are hex not torx. Maybe it depends on what kind of screw they had around the day it was built. On Tue, Jan 17, 2012 at 2:42 PM, Paul F. Sehorne[1]p...@sehorne.org wrote: I received my two FE-5680s today. The first thing I want to do is inspect the insides. The smallest Torx I have is a too-big T-8. What size is needed? I'll need to do an internet search for the correct size. Thanks, Paul ___ time-nuts mailing list -- [2]time-nuts@febo.com To unsubscribe, go to [3]https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. -- Chris Albertson Redondo Beach, California ___ time-nuts mailing list -- [4]time-nuts@febo.com To unsubscribe, go to [5]https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. References 1. mailto:p...@sehorne.org 2. mailto:time-nuts@febo.com 3. https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts 4. mailto:time-nuts@febo.com 5. https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] FE-5680A what is the size of the Torx??
Great! Thanks. My T-8 was just a bit too big. On 1/17/2012 6:31 PM, Brian, WA1ZMS wrote: I used a T7 bit for mine. -Brian, WA1ZMS ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] FE-5680A what is the size of the Torx??
I'll give that a try. In the meantime, I'll try to come up with an Torx of the correct size. Brian said T-7 fit his. On 1/17/2012 6:07 PM, Chuck Forsberg WA7KGX N2469R wrote: I have a tool with a number of Allen wrenches. The smallest of the lot fits the screws that hold the oscillator to the board. I found it easiest to insert the tool from the other side of the board rather than unscrewing the usual way. This way I was able to insert the Allen wrench well into the screw yet avoid interference with the oscillator box. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] FE-5680A what is the size of the Torx??
That I've got. Will give it a try. Thanks On 1/17/2012 9:04 PM, J. L. Trantham wrote: Mine opened with a 1/16th inch Allen wrench. Joe ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] FE-5680A what is the size of the Torx??
Okay. Thanks, Chuck On 1/17/2012 8:35 PM, Chuck Harris wrote: Home Depot sells a little HUSKY brand screwdriver tool that has replaceable bits. It has all the tiny torx sizes. The correct tool has a black end cap, and costs about $6 -Chuck Harris ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] FE-5680A Mechanical Question
It appears to me that the Mailman application does not provide the search capabilities that, for instance, a Yahoo group does. I suppose that I am guilty of asking questions that have already been asked and answered; but my attempts at finding answers in the archives results in a lot of reading without finding the answer I am looking for. Paul On 1/12/2012 5:42 AM, Rex wrote: I think we really need a FAQ, particularly for the 5680A. Maybe Didier would provide a place. (Or is it already there?) ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
[time-nuts] How to search time-nuts archive
Thanks, Bjorn. On 1/12/2012 11:20 AM, b...@lysator.liu.se wrote: It appears to me that the Mailman application does not provide the search capabilities that, for instance, a Yahoo group does. I suppose that I am guilty of asking questions that have already been asked and answered; but my attempts at finding answers in the archives results in a lot of reading without finding the answer I am looking for. Google is useful! Feed something like the below string to google. 5680A pinout site:febo.com -- Björn ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
[time-nuts] How do I get to the archived messages?
How do I get to the archived messages? Can someone provide a link? Thanks, Paul ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] How do I get to the archived messages?
I was able to access the archives via the link that was appended by the system to the email below (and will likely be appended to this email as well) On 1/11/2012 1:03 PM, Paul F. Sehorne wrote: How do I get to the archived messages? Can someone provide a link? Thanks, Paul ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] FE-5680A arrived
I notice that on eBay nichegeek provides a NEW OCXO VECTRON 63.8976Mhz with the FE-5680A. What is it used for. Is something external needed besides the power supply? Thanks, Paul ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
