Re: [time-nuts] Comments on Tbolt deal?
Hi It's also amazing that the laser marking systems seem to get worse and worse at marking parts legibly Bob On Jun 6, 2010, at 10:25 PM, Steve Rooke wrote: Arthur, On 7 June 2010 02:21, Arthur Dent golgarfrinc...@yahoo.com wrote: On 6 June 2010 09:42, Arthur Dent golgarfrincham at yahoo.com wrote: After about mid 2004 the DS1620 thermometer chip was the E version that displays the temperature in steps of maybe 1 degree. I've replaced a few of these chips with C versions that correct the graphing problem and make the T-bolts work properly. Unless you want to find and replace the surface mount chip yourself, make sure any late model (after mid 2004) t-bolt has a D or a C chip, not an E. What happens when you have a TB dated 7/11/03 with a thermometer chip that is labelled:- DS1620 031001 810AA No other markings? Thanks, Steve +++ Steve, If you check closely I think you'll find that the line you read as 031001 is actually 0310D1 where the 5th character is a capital D. The 03 is the year and the 10 may be the month of the year. The D1 is the revision code. The C version was before maybe 2000 so you won't see those unless they are used as replacements and the E revision wasn't used until late 2004. Many thanks for your excellent explanation of this. Seems my old tired eyes even with a magnifying glass were not up to the task. It's ironic that the older we get the smaller they make the parts. Best regards, Steve -Arthur ___ 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. -- Steve Rooke - ZL3TUV G8KVD The only reason for time is so that everything doesn't happen at once. - Einstein ___ 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] Comments on Tbolt deal?
Hi Bob, On 7 June 2010 23:51, Bob Camp li...@rtty.us wrote: Hi It's also amazing that the laser marking systems seem to get worse and worse at marking parts legibly That's the modern definition of progress. Steve Bob On Jun 6, 2010, at 10:25 PM, Steve Rooke wrote: Arthur, On 7 June 2010 02:21, Arthur Dent golgarfrinc...@yahoo.com wrote: On 6 June 2010 09:42, Arthur Dent golgarfrincham at yahoo.com wrote: After about mid 2004 the DS1620 thermometer chip was the E version that displays the temperature in steps of maybe 1 degree. I've replaced a few of these chips with C versions that correct the graphing problem and make the T-bolts work properly. Unless you want to find and replace the surface mount chip yourself, make sure any late model (after mid 2004) t-bolt has a D or a C chip, not an E. What happens when you have a TB dated 7/11/03 with a thermometer chip that is labelled:- DS1620 031001 810AA No other markings? Thanks, Steve +++ Steve, If you check closely I think you'll find that the line you read as 031001 is actually 0310D1 where the 5th character is a capital D. The 03 is the year and the 10 may be the month of the year. The D1 is the revision code. The C version was before maybe 2000 so you won't see those unless they are used as replacements and the E revision wasn't used until late 2004. Many thanks for your excellent explanation of this. Seems my old tired eyes even with a magnifying glass were not up to the task. It's ironic that the older we get the smaller they make the parts. Best regards, Steve -Arthur ___ 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. -- Steve Rooke - ZL3TUV G8KVD The only reason for time is so that everything doesn't happen at once. - Einstein ___ 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. -- Steve Rooke - ZL3TUV G8KVD The only reason for time is so that everything doesn't happen at once. - Einstein ___ 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] Comments on Tbolt deal?
On 6 June 2010 09:42, Arthur Dent golgarfrinc...@yahoo.com wrote: After about mid 2004 the DS1620 thermometer chip was the E version that displays the temperature in steps of maybe 1 degree. I've replaced a few of these chips with C versions that correct the graphing problem and make the T-bolts work properly. Unless you want to find and replace the surface mount chip yourself, make sure any late model (after mid 2004) t-bolt has a D or a C chip, not an E. What happens when you have a TB dated 7/11/03 with a thermometer chip that is labelled:- DS1620 031001 810AA No other markings? Thanks, Steve The older T-bolts before ~2001 had Version 2.2 firmware which I understand isn't as much of a problem as the Piezo brand oscillator they had. Others have commented this oscillator isn't that great. The new T-bolts have Trimble branded oscillators which are much better. -Arthur ___ 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. -- Steve Rooke - ZL3TUV G8KVD The only reason for time is so that everything doesn't happen at once. - Einstein ___ 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] Comments on Tbolt deal?
On 6 June 2010 09:42, Arthur Dent golgarfrincham at yahoo.com wrote: After about mid 2004 the DS1620 thermometer chip was the E version that displays the temperature in steps of maybe 1 degree. I've replaced a few of these chips with C versions that correct the graphing problem and make the T-bolts work properly. Unless you want to find and replace the surface mount chip yourself, make sure any late model (after mid 2004) t-bolt has a D or a C chip, not an E. What happens when you have a TB dated 7/11/03 with a thermometer chip that is labelled:- DS1620 031001 810AA No other markings? Thanks, Steve +++ Steve, If you check closely I think you'll find that the line you read as 031001 is actually 0310D1 where the 5th character is a capital D. The 03 is the year and the 10 may be the month of the year. The D1 is the revision code. The C version was before maybe 2000 so you won't see those unless they are used as replacements and the E revision wasn't used until late 2004. -Arthur ___ 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] Comments on Tbolt deal?
Arthur, On 7 June 2010 02:21, Arthur Dent golgarfrinc...@yahoo.com wrote: On 6 June 2010 09:42, Arthur Dent golgarfrincham at yahoo.com wrote: After about mid 2004 the DS1620 thermometer chip was the E version that displays the temperature in steps of maybe 1 degree. I've replaced a few of these chips with C versions that correct the graphing problem and make the T-bolts work properly. Unless you want to find and replace the surface mount chip yourself, make sure any late model (after mid 2004) t-bolt has a D or a C chip, not an E. What happens when you have a TB dated 7/11/03 with a thermometer chip that is labelled:- DS1620 031001 810AA No other markings? Thanks, Steve +++ Steve, If you check closely I think you'll find that the line you read as 031001 is actually 0310D1 where the 5th character is a capital D. The 03 is the year and the 10 may be the month of the year. The D1 is the revision code. The C version was before maybe 2000 so you won't see those unless they are used as replacements and the E revision wasn't used until late 2004. Many thanks for your excellent explanation of this. Seems my old tired eyes even with a magnifying glass were not up to the task. It's ironic that the older we get the smaller they make the parts. Best regards, Steve -Arthur ___ 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. -- Steve Rooke - ZL3TUV G8KVD The only reason for time is so that everything doesn't happen at once. - Einstein ___ 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] Comments on Tbolt deal?
Morning, folks. After much consideration I've decided that I really do need that accurate 1PPS and 10MHz source. Seller flyingbest on eBay is offering those Tbolt/PSU/AA packages for a princely $189. Any gotchas or reasons to not get one of these? TIA, Lee. ___ 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] Comments on Tbolt deal?
I have dealt with flyingbest on and off eBay with no problems on TBolts. PSU is nice and net but I am sure that the timenuts will frown on switch mode PS. Morning, folks. After much consideration I've decided that I really do need that accurate 1PPS and 10MHz source. Seller flyingbest on eBay is offering those Tbolt/PSU/AA packages for a princely $189. Any gotchas or reasons to not get one of these? TIA, Lee. -- Raj, VU2ZAP Bangalore, India. ___ 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] Comments on Tbolt deal?
In a message dated 05/06/2010 13:47:02 GMT Daylight Time, kd...@spamcop.net writes: Seller flyingbest on eBay is offering those Tbolt/PSU/AA packages for a princely $189. Any gotchas or reasons to not get one of these? -- In general terms the Thunderbolt is a great unit and very good value and I'd certainly recommend it, but a couple of observations on this auction in particular. Whilst that package would certainly be convenient they have another auction for the T'bolt only at $130 with free shipping, that saves you $60 and all you need then is a basic antenna similar to that with the kit and a suitable power supply and connector. Basic antennas can be had on Ebay for a few dollars and it's easy enough to build a suitable linear supply for not much money, with the added advantage you don't have switch mode noise to worry about. Manuals and the Trimble software are availabe free online anyway. A further consideration is that whilst the stand alone units are clearly stated to be version 3.0 firmware, and the case photo shows one marked as Revision E with a 2004 date, the T'bolt shown with the kit has version 2.22 firmware and is a Revision B from 2002. At the very least I would ask them to confirm what version they would supply with the kit and if they are also applying that return for any reason option to the kits. Another Chinese seller worth considering is Bob Mokia who sells on Ebay as fluke.l, ( if you're searching that last digit is a small letter ell not a one), and 290329755146 is one of several BIN auctions he's offering for these. Admittedly this is $10 dearer for the stand alone unit, although he does indicate in one auction that he has antennas and PSUs available, but I and others here have dealt with him quite often and his reputation is good. regards Nigel GM8PZR ___ 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] Comments on Tbolt deal?
In message 90f3b.769add12.393ba...@aol.com, gandal...@aol.com writes: Another Chinese seller worth considering is Bob Mokia who sells on Ebay as fluke.l, Speaking of which: Has anybody tried the GPS/Glonass receivers he has for sale ? -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 p...@freebsd.org | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence. ___ 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] Comments on Tbolt deal?
I've noticed a U.S. seller on Ebay with 100% positive feedback selling a Thunderbolt package deal that isn't too pricey, actually quite a bit less than the one you mention. Apparently they have several and have been listing them over the last few weeks. the latest item (120576511516) ends in a few hours. Might be worth looking into if you need a T-bolt and want to buy stateside. -Arthur ___ 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] Comments on Tbolt deal - Fluke.L
I just received a Thunderbolt from fluke.L to replace the TAPR Thunderbolt I have that fails. I paid fluke.L on May 19 and it arrived in Michigan, USA on June 3. I'm in my second day of testing with the fluke.L Thunderbolt and it is working fine so far. In January I bought the Thunderbolt PRECISION GPS 10mhz Standard's LED Monitor from fluke.L and it works fine. Mike - AA8K gandal...@aol.com wrote: Another Chinese seller worth considering is Bob Mokia who sells on Ebay as fluke.l, ( if you're searching that last digit is a small letter ell not a one), and 290329755146 is one of several BIN auctions he's offering for these. Admittedly this is $10 dearer for the stand alone unit, although he does indicate in one auction that he has antennas and PSUs available, but I and others here have dealt with him quite often and his reputation is good. regards Nigel GM8PZR ___ 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] Comments on Tbolt deal?
I am not sure what item you are looking at but I lost a TBolt while connected to a switching power supply (I live in an area with frequent intermittent power outages) so I prefer a linear power supply (another TBolt running on a linear power supply for days/weeks on end with no further problems). Also, there is a nice timing antenna available for $30 (e..y item 290369619357) that may be better than the 'patch' antennas. No connection to seller except a satisfied customer. All in all, the TBolt is a good piece of equipment IMHO. Joe -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Lee Reynolds Sent: Saturday, June 05, 2010 7:45 AM To: time-nuts@febo.com Subject: [time-nuts] Comments on Tbolt deal? Morning, folks. After much consideration I've decided that I really do need that accurate 1PPS and 10MHz source. Seller flyingbest on eBay is offering those Tbolt/PSU/AA packages for a princely $189. Any gotchas or reasons to not get one of these? TIA, Lee. ___ 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] Comments on Tbolt deal - Fluke.L
Did you send the failed Tbolt back to tvb? ISTR that he expressed an interest in getting failed TAPR units back so that he could investigate why they failed. Dave -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Mike Naruta AA8K Sent: 05 June 2010 15:36 To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] Comments on Tbolt deal - Fluke.L to replace the TAPR Thunderbolt I have that fails. ___ 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] Comments on Tbolt deal?
Hi Poul-Henning, Another Chinese seller worth considering is Bob Mokia who sells on Ebay as fluke.l, Speaking of which: Has anybody tried the GPS/Glonass receivers he has for sale ? Did you find any manuals for the Samsung receiver? The receiver would be interesting to test, but with NO documentation it might not be that useful. -- 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.
Re: [time-nuts] Comments on Tbolt deal?
Hi The TBolt needs a supply that will put out about an amp at +12, just over 1/4 amp at +5 and a few ma at -12. Regulating the +5 down from the +12 isn't to hard with a 7805 and a series resistor. That gets you to +/-12 for the supply. Switchers do indeed work, linear supplies are often a bit less noisy. The antenna hooks up with TV coax and F connectors at the TBolt end. Most antennas have something other than an F connector on them. If you roll your own you likely will need an F to what ever adapter. Timing oriented antennas run around $30 or so. Just about any GPS antenna will work. I have dealt with pretty much all of the Chinese TBolt vendors. They all have delivered the product exactly as described. That includes a gentleman selling the FW V 3.0 version for $65 plus $25 shipping. The only TBolts to avoid are the ones made before 2001. As far as I can see those are no longer floating around China. The FW 3.0 stuff seems to be from late 2004 and 2005. The not FW 3.0 rarely is from before 2003. Bob On Jun 5, 2010, at 8:45 AM, Lee Reynolds wrote: Morning, folks. After much consideration I've decided that I really do need that accurate 1PPS and 10MHz source. Seller flyingbest on eBay is offering those Tbolt/PSU/AA packages for a princely $189. Any gotchas or reasons to not get one of these? TIA, Lee. ___ 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] Comments on Tbolt deal?
After about mid 2004 the DS1620 thermometer chip was the E version that displays the temperature in steps of maybe 1 degree. I've replaced a few of these chips with C versions that correct the graphing problem and make the T-bolts work properly. Unless you want to find and replace the surface mount chip yourself, make sure any late model (after mid 2004) t-bolt has a D or a C chip, not an E. The older T-bolts before ~2001 had Version 2.2 firmware which I understand isn't as much of a problem as the Piezo brand oscillator they had. Others have commented this oscillator isn't that great. The new T-bolts have Trimble branded oscillators which are much better. -Arthur ___ 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.
