For the T-bolt power supply I am using the Mean Well. Model: T-30B wich I bought out of China for about $45 shipped. It is a switching supply but seems to be doing the job. As I remember I bought it from fluke.i Jerry
On Thu, Feb 10, 2011 at 6:33 PM, <time-nuts-requ...@febo.com> wrote: > Send time-nuts mailing list submissions to > time-nuts@febo.com > > To subscribe or unsubscribe via the World Wide Web, visit > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > or, via email, send a message with subject or body 'help' to > time-nuts-requ...@febo.com > > You can reach the person managing the list at > time-nuts-ow...@febo.com > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of time-nuts digest..." > > > Today's Topics: > > 1. Re: HP 5372A vs. 5370A: Thanks (Bob Camp) > 2. Re: HP 5372A vs. 5370A: Thanks (Pete Lancashire) > 3. Re: HP 5370A temp (gonzo .) > 4. Thunderbolt Supply (Larry McDavid) > 5. Re: Thunderbolt Supply (J. L. Trantham) > 6. Re: Thunderbolt Supply (Larry McDavid) > 7. Re: Thunderbolt Supply (Tim Tuck) > 8. Re: HP 5372A vs. 5370A (Bob Camp) > 9. Re: Thunderbolt Supply (Bob Camp) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Thu, 10 Feb 2011 16:44:53 -0500 > From: "Bob Camp" <li...@rtty.us> > Subject: Re: [time-nuts] HP 5372A vs. 5370A: Thanks > To: "'Discussion of precise time and frequency measurement'" > <time-nuts@febo.com> > Message-ID: <d434c935abe0487581b3d2d0bb227...@vectron.com> > Content-Type: text/plain; charset="US-ASCII" > > Hi > > On a variety of levels, yes, the 5370 is the box to get first (and maybe > second and third). > > Checking power supplies and cleaning contacts goes a long way on a 5370. Who > knows what to do on a 5371 or 5372. Just finding the service manuals on them > is no easy task (yes, I have a copy, not looking for another). > > Bob > > -----Original Message----- > From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On > Behalf Of Pete Lancashire > Sent: Thursday, February 10, 2011 4:24 PM > To: Discussion of precise time and frequency measurement > Subject: Re: [time-nuts] HP 5372A vs. 5370A: Thanks > > I second that 1000% > > Now to figure out whats wrong in the two dead 5370Bs. Glad it is them > and not the 72A ! > > On Thu, Feb 10, 2011 at 1:11 PM, Bert, VE2ZAZ <ve2...@yahoo.ca> wrote: >> To All who have contributed, >> >> Your answers have been very informative, and I appreciate the time the > people >> have taken to answer my initial request on the differences between the HP > 5372A >> and 5370A T.I. Counters/Analyzers. >> >> The bottom line I get out of this thread is that both are useful to own, > with >> one having a better raw resolution, but the other doing continuous > measurements. >> The 5370A is probably the one to own if you can only afford one piece of > HP T.I. >> equipment and you do GPIB interfacing. >> >> Thanks, >> >> Bert. >> >> >> >> _______________________________________________ >> 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. > > > > > ------------------------------ > > Message: 2 > Date: Thu, 10 Feb 2011 13:59:58 -0800 > From: Pete Lancashire <p...@petelancashire.com> > Subject: Re: [time-nuts] HP 5372A vs. 5370A: Thanks > To: Discussion of precise time and frequency measurement > <time-nuts@febo.com> > Message-ID: > <AANLkTikQTJXHTgDUrKORbzmKgKA4uV8hyA9b8Of=u...@mail.gmail.com> > Content-Type: text/plain; charset=UTF-8 > > I ended up with the 5372A first one of those $50 and forget bids on > the E. the $140 shipping is another story. > > > BTW took the bottom of one of the 5370B and about 4 or 5 dehydrated > spiders and other insect remains fell > out. The smell is mouse urine but there is no evidence of mice. The > dog finally gave up trying to 'kill' the > 5370B. My guess is what ever was on top of it is the item you don't want to > buy. > > -pete > > On Thu, Feb 10, 2011 at 1:44 PM, Bob Camp <li...@rtty.us> wrote: >> Hi >> >> On a variety of levels, yes, the 5370 is the box to get first (and maybe >> second and third). >> >> Checking power supplies and cleaning contacts goes a long way on a 5370. Who >> knows what to do on a 5371 or 5372. Just finding the service manuals on them >> is no easy task (yes, I have a copy, not looking for another). >> >> Bob >> >> -----Original Message----- >> From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On >> Behalf Of Pete Lancashire >> Sent: Thursday, February 10, 2011 4:24 PM >> To: Discussion of precise time and frequency measurement >> Subject: Re: [time-nuts] HP 5372A vs. 5370A: Thanks >> >> I second that 1000% >> >> Now to figure out whats wrong in the two dead 5370Bs. Glad it is them >> and not the 72A ! >> >> On Thu, Feb 10, 2011 at 1:11 PM, Bert, VE2ZAZ <ve2...@yahoo.ca> wrote: >>> To All who have contributed, >>> >>> Your answers have been very informative, and I appreciate the time the >> people >>> have taken to answer my initial request on the differences between the HP >> 5372A >>> and 5370A T.I. Counters/Analyzers. >>> >>> The bottom line I get out of this thread is that both are useful to own, >> with >>> one having a better raw resolution, but the other doing continuous >> measurements. >>> The 5370A is probably the one to own if you can only afford one piece of >> HP T.I. >>> equipment and you do GPIB interfacing. >>> >>> Thanks, >>> >>> Bert. >>> >>> >>> >>> _______________________________________________ >>> 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 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. >> > > > > ------------------------------ > > Message: 3 > Date: Thu, 10 Feb 2011 22:49:02 +0000 > From: "gonzo ." <cadbl...@hotmail.com> > Subject: Re: [time-nuts] HP 5370A temp > To: time-nuts <time-nuts@febo.com> > Message-ID: <col124-w14abf21574e751f8c68b10c6...@phx.gbl> > Content-Type: text/plain; charset="iso-8859-1" > > > Good point Bob. > I was planning to fit a 'like for like' replacement, but there is no need to > do so > A modern 2.2W 12V fan performs to the same spec as the original 15W 115V fan. > (PAPST 8312 vs PAPST 8500d) > > cheers, > Ian > > > >> From: Bob Bownes <bow...@gmail.com> >> Subject: Re: [time-nuts] time-nuts Digest, Vol 79, Issue 31 >> To: Discussion of precise time and frequency measurement >> <time-nuts@febo.com> >> Message-ID: >> <AANLkTi=mu-xp1pvkt9swzjw2tikmw8fke68juwdr5...@mail.gmail.com> >> Content-Type: text/plain; charset=ISO-8859-1 >> >> Ian, >> >> I've dropped the temp and the noise level in my 'lab' by replacing >> many of the old 110V fans whose bearings are getting on with more >> modern 'silent' 12V fans that use less power, move more air, and are >> far quieter than the 110 fans ever were. You can find them from a >> number of sources online, and while rated at 12Vdc, they run pretty >> well on anything from 5-15. >> >> Bob > > > > ------------------------------ > > Message: 4 > Date: Thu, 10 Feb 2011 15:16:55 -0800 > From: Larry McDavid <lmcda...@lmceng.com> > Subject: [time-nuts] Thunderbolt Supply > To: Timenuts <time-nuts@febo.com> > Message-ID: <4d5471e7.4050...@lmceng.com> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > Greetings! I am a new member of the mail list. I've been using a HP > Z3801A GPS-steered standard but have just acquired a Trimble Thunderbolt > GPS Disciplined Clock. > > I'm seeking a recommendation for a power supply for this Thunderbolt > receiver. There is much discussion about noise from some switching > supplies and the effect on phase noise of the 10 MHz output. The > Thunderbolt manual specifies the following supply and loads: > > +12 vdc 750 mA > + 5 vdc 400 mA > -12 vdc 10 mA > > This combination is somewhat unusual in that the highest current is on > the 12 volt output rather than the 5 volt output. I'm asking if list > members have a favorite power supply for this unit, why and where I can > obtain one. > > -- > Best wishes, > > Larry McDavid W6FUB > Anaheim, CA (20 miles southeast of Los Angeles, near Disneyland) > > > > ------------------------------ > > Message: 5 > Date: Thu, 10 Feb 2011 17:32:22 -0600 > From: "J. L. Trantham" <jlt...@att.net> > Subject: Re: [time-nuts] Thunderbolt Supply > To: "Discussion of precise time and frequency measurement" > <time-nuts@febo.com> > Message-ID: <hdeflgkacieoibffbehpoeefdbaa.jlt...@att.net> > Content-Type: text/plain; charset="us-ascii" > > Larry, > > I favor a linear regulated supply rather than a switching supply. I had a > TBolt die while connected to a switching supply in an environment where > there were frequent power outages. > > The +12 VDC current drops significantly after the OCXO warms up, probably > down to about 200 mA or so. > > Good luck. They are neat little devices. > > Joe > > -----Original Message----- > From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com]On > Behalf Of Larry McDavid > Sent: Thursday, February 10, 2011 5:17 PM > To: Timenuts > Subject: [time-nuts] Thunderbolt Supply > > Greetings! I am a new member of the mail list. I've been using a HP > Z3801A GPS-steered standard but have just acquired a Trimble Thunderbolt > GPS Disciplined Clock. > > I'm seeking a recommendation for a power supply for this Thunderbolt > receiver. There is much discussion about noise from some switching > supplies and the effect on phase noise of the 10 MHz output. The > Thunderbolt manual specifies the following supply and loads: > > +12 vdc 750 mA > + 5 vdc 400 mA > -12 vdc 10 mA > > This combination is somewhat unusual in that the highest current is on > the 12 volt output rather than the 5 volt output. I'm asking if list > members have a favorite power supply for this unit, why and where I can > obtain one. > > -- > Best wishes, > > Larry McDavid W6FUB > Anaheim, CA (20 miles southeast of Los Angeles, near Disneyland) > > _______________________________________________ > 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. > ----- > No virus found in this message. > Checked by AVG - www.avg.com > Version: 10.0.1204 / Virus Database: 1435/3434 - Release Date: 02/10/11 > > > > > ------------------------------ > > Message: 6 > Date: Thu, 10 Feb 2011 15:46:05 -0800 > From: Larry McDavid <lmcda...@lmceng.com> > Subject: Re: [time-nuts] Thunderbolt Supply > To: Discussion of precise time and frequency measurement > <time-nuts@febo.com> > Message-ID: <4d5478bd.20...@lmceng.com> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > Certainly, I'd prefer a linear 3-output supply. But, I've not found a > suitable one yet, in linear or switching. TAPR offered one in the past > but has no more. So, I'm asking for recommendations and where to get one. > > Larry > > > On 2/10/2011 3:32 PM, J. L. Trantham wrote: >> I favor a linear regulated supply rather than a switching supply. I had a >> TBolt die while connected to a switching supply in an environment where >> there were frequent power outages. > ... >> -----Original Message----- >> From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com]On >> Behalf Of Larry McDavid > ... >> I'm seeking a recommendation for a power supply for this Thunderbolt >> receiver. There is much discussion about noise from some switching >> supplies and the effect on phase noise of the 10 MHz output. The >> Thunderbolt manual specifies the following supply and loads: >> >> +12 vdc 750 mA >> + 5 vdc 400 mA >> -12 vdc 10 mA >> >> This combination is somewhat unusual in that the highest current is on >> the 12 volt output rather than the 5 volt output. I'm asking if list >> members have a favorite power supply for this unit, why and where I can >> obtain one. > ... > -- > Best wishes, > > Larry McDavid W6FUB > Anaheim, CA (20 miles southeast of Los Angeles, near Disneyland) > > > > ------------------------------ > > Message: 7 > Date: Fri, 11 Feb 2011 12:22:42 +1100 > From: Tim Tuck <t...@skybase.net> > Subject: Re: [time-nuts] Thunderbolt Supply > To: Discussion of precise time and frequency measurement > <time-nuts@febo.com> > Message-ID: <4d548f62.7090...@skybase.net> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > Hi Larry, > > I use a linear supply for mine. > > My supply is actually a headphone amp supply kit from JayCar Electronics > here in Australia. Its basically two LM317's and a 7805 for 5v. I > changed the resistor that set the output voltage from 15v to 12v and > also selected an appropriate toroid transformer to suit. > > Links here.... > > http://www.jaycar.com.au/productView.asp?ID=KC5418&CATID=25&form=CAT&SUBCATID=557 > > http://www.jaycar.com.au/productView.asp?ID=MT2084&CATID=19&form=CAT&SUBCATID=539 > > I dont know if you can get these kits in the US or if JayCar ship > internationally, you'd have to ask. > > I'm sure you could find or build something similar state side :) > > regards > > Tim > > > -- > > VK2XTT :: QF56if :: BMARC :: WIA :: AMSAT-VK :: AMSAT > > > > > ------------------------------ > > Message: 8 > Date: Thu, 10 Feb 2011 20:30:09 -0500 > From: "Bob Camp" <li...@rtty.us> > Subject: Re: [time-nuts] HP 5372A vs. 5370A > To: "Discussion of precise time and frequency measurement" > <time-nuts@febo.com> > Message-ID: <d51deea9741c4d07af1a0e3b14bb6...@hm.clpa.com> > Content-Type: text/plain; format=flowed; charset="iso-8859-1"; > reply-type=original > > Hi > > HP 5371A 2828 dated 08 July 1988 > > Put another way, no it does not have the free update from ~ 1991. I wonder > if HP will drop by and put it in mine ....I have a strong suspicion the > answer is no. > > Bob > > -----Original Message----- > From: Poul-Henning Kamp > Sent: Thursday, February 10, 2011 8:04 AM > To: Discussion of precise time and frequency measurement > Subject: Re: [time-nuts] HP 5372A vs. 5370A > > In message <539fb2cd-a764-4825-8932-970d4253b...@rtty.us>, Bob Camp writes: > >>The 5371 / 5372 are never going to be as popular as the 5370 in >>terms of people needing support. They just aren't that common. >> >>Getting binary dumps into one of the software packages would be >>very nice. The rest of the stuff is much further down my list. >>Without a binary dump, you can't do anything that runs over a long >>period of time. I'm not sure what HP really wanted you to do in >>that case. They may have planed a PC software package and then not > followed through with it. > > My guess: The realized that GPIB was to slow for much of that, and > decided to the that stuff on the VXI bus instead... > > But that reminds me: do we even know how many different software > versions there were for these beasts ? > > Which software versions do people have on their HP537[123]A ? > > My HP5372A is 2947 (08 Dec 1989) > > -- > 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. > > > > > ------------------------------ > > Message: 9 > Date: Thu, 10 Feb 2011 20:33:31 -0500 > From: "Bob Camp" <li...@rtty.us> > Subject: Re: [time-nuts] Thunderbolt Supply > To: "Discussion of precise time and frequency measurement" > <time-nuts@febo.com> > Message-ID: <7b7e6cf020ef4e148638c66c157dd...@hm.clpa.com> > Content-Type: text/plain; format=flowed; charset="iso-8859-1"; > reply-type=response > > Hi > > I have so many of them that I run them off big lab grade linear supplies. > That's not to good for a single unit. > > The neatest way is to run some low drop out linear regulators off of a > switcher. That way you get it all. The tolerances on the supplies are such > that an LDO with a hundred mv dropout works with a +/- 12 volt +5 volt > switcher. > > Bob > > > -----Original Message----- > From: Larry McDavid > Sent: Thursday, February 10, 2011 6:46 PM > To: Discussion of precise time and frequency measurement > Subject: Re: [time-nuts] Thunderbolt Supply > > Certainly, I'd prefer a linear 3-output supply. But, I've not found a > suitable one yet, in linear or switching. TAPR offered one in the past > but has no more. So, I'm asking for recommendations and where to get one. > > Larry > > > On 2/10/2011 3:32 PM, J. L. Trantham wrote: >> I favor a linear regulated supply rather than a switching supply. I had a >> TBolt die while connected to a switching supply in an environment where >> there were frequent power outages. > ... >> -----Original Message----- >> From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com]On >> Behalf Of Larry McDavid > ... >> I'm seeking a recommendation for a power supply for this Thunderbolt >> receiver. There is much discussion about noise from some switching >> supplies and the effect on phase noise of the 10 MHz output. The >> Thunderbolt manual specifies the following supply and loads: >> >> +12 vdc 750 mA >> + 5 vdc 400 mA >> -12 vdc 10 mA >> >> This combination is somewhat unusual in that the highest current is on >> the 12 volt output rather than the 5 volt output. I'm asking if list >> members have a favorite power supply for this unit, why and where I can >> obtain one. > ... > -- > Best wishes, > > Larry McDavid W6FUB > Anaheim, CA (20 miles southeast of Los Angeles, near Disneyland) > > _______________________________________________ > 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 > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > > End of time-nuts Digest, Vol 79, Issue 43 > ***************************************** > _______________________________________________ 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.