Hi Glenn,
I agree 100% having repaired SMPSU's since the late 70's, However this
particular unit is multi output, multi input and VERY densely packed. It would
not be worth replascing all the caps.because you would have to totally
dismantle the PSU to do it.
Robert G8RPI.
Glenn Littl
Glenn
Thanks for the very incisive "inside" perspective on SMPS - I would
certainly agree that the average SMPS unit is very much a 'budget' design,
but this one is rather well made, and provides a DC 'back up' facility, so
it would be nice to restore it. There is also the very real danger of
c
Paging Tom van Baak. I replied to your offline email, but that email and
the follow up sent with delivery receipt requested seem not to have arrived.
Do you or your ISP have a (silent) spam trapper that is putting my mails in
the bin without sending a delivery receipt?
Thanks
Dave
-Original
Most experienced people refuse to send delivery receipts. To send them would
validate their address to all of the spammers that blindly spam every email
address they can scrape off of the internet.
-Chuck Harris
David C. Partridge wrote:
> Paging Tom van Baak. I replied to your offline email,
On Thu, 17 Apr 2008 08:47:48 -0700 (GMT-07:00)
"Richard W. Solomon" <[EMAIL PROTECTED]> wrote:
> You can build a very good GPSDO for about $100 in parts.
Stupid question, but if one builds his on frequency
reference, how can you be sure it's acurate and precise?
Or to but it in other words: how
Quoting Attila Kinali <[EMAIL PROTECTED]>, on Sun 20 Apr 2008 05:50:21 AM PDT:
> On Thu, 17 Apr 2008 08:47:48 -0700 (GMT-07:00)
> "Richard W. Solomon" <[EMAIL PROTECTED]> wrote:
>
>> You can build a very good GPSDO for about $100 in parts.
>
> Stupid question, but if one builds his on frequency
>
> Attila Kinali <[EMAIL PROTECTED]>, on Sun 20 Apr 2008
> 05:50:21 AM PDT:
>
> > On Thu, 17 Apr 2008 08:47:48 -0700 (GMT-07:00) "Richard W. Solomon"
> > <[EMAIL PROTECTED]> wrote:
> >
> >> You can build a very good GPSDO for about $100 in parts.
> >
> > Stupid question, but if one builds his on
You can never be absolutely sure of your frequency, no matter how
you measure it. That is the Holy Grail that the folks on this list
pursue but can never attain.
Since the GPSDO I built (actually two of them) uses the GPS satellite
system for frequency control, I feel it's as good as you can get i
Hi:
This is the rollover date for "C" language date functions that count the
seconds since 00:00:00 1 Jan 1970 with a signed 32 bit integer.
One second after after 03:14:07 GMT, January 19, 2038 is in 1901.
--
Have Fun,
Brooke Clarke
http://www.prc68.com/P/Prod.html Products I make and sell
In message <[EMAIL PROTECTED]>, Brooke Clarke writes:
>Hi:
>
>This is the rollover date for "C" language date functions that count the
>seconds since 00:00:00 1 Jan 1970 with a signed 32 bit integer.
>
>One second after after 03:14:07 GMT, January 19, 2038 is in 1901.
I think you can take it as r
Hi:
I should have mentioned the failures have just started. If you subtract 30
years from the subject date you get: 03:14:07 GMT, January 19, 2008
Financial institutions that do 30 year mortgage calculations are the ones who
were bitten.
Have Fun,
Brooke Clarke
http://www.prc68.com/P/Prod.ht
One of the coolest art clocks I've seen in awhile
http://www.christiaanpostma.nl/
Flash animation of it working here:
http://technabob.com/blog/2008/04/19/word-clock-slowly-reveals-the-time-with-text/
John
--
John De Armond
See my website for my current email address
http://www.neon-john.com
h
On Sun, 20 Apr 2008 09:25:37 -0700
Jim Lux <[EMAIL PROTECTED]> wrote:
> > Stupid question, but if one builds his on frequency
> > reference, how can you be sure it's acurate and precise?
>
> not a stupid question at all..PhD dissertations have been written
> about answering it.
If there are dis
On Sun, 20 Apr 2008 11:28:51 -0700 (GMT-07:00)
"Richard W. Solomon" <[EMAIL PROTECTED]> wrote:
> One experiment I tried to confirm that they actually worked was:
> One GPSDO 10 MHz output was used as the external reference for an
> EIP 535 Counter. The second GPSDO was used to lock up a 1 GHz PLO
Must be a drag to set.
-RL
---
Robert Lutwak
Symmetricom - Technology Realization Center
[EMAIL PROTECTED](Business)
[EMAIL PROTECTED] (Personal)
(978) 232-1461 (Desk)
(339) 927-7896 (Mobile)
(
In message: <[EMAIL PROTECTED]>
Brooke Clarke <[EMAIL PROTECTED]> writes:
: I should have mentioned the failures have just started. If you subtract 30
: years from the subject date you get: 03:14:07 GMT, January 19, 2008
: Financial institutions that do 30 year mortgage calculations
I didn't worry about it. As the old Philosopher once said:
..."It will be what it will be"... .
73, Dick, W1KSZ
-Original Message-
>From: Attila Kinali <[EMAIL PROTECTED]>
>Sent: Apr 20, 2008 4:25 PM
>To: "Richard W. Solomon" <[EMAIL PROTECTED]>
>Cc: Discussion of precise time and frequen
Quoth Brooke Clarke at 2008-04-21 04:59...
> This is the rollover date for "C" language date functions that count the
> seconds since 00:00:00 1 Jan 1970 with a signed 32 bit integer.
>
> One second after after 03:14:07 GMT, January 19, 2038 is in 1901.
This has been known about for some time -
It does not matter how many references you build you will never know how
good they are. There can only one judgement "goodness", and this is
comparison with the national standard. You reference may even be "better"
that a national standard but must be judged against the national standard.
Most coun
Hi,
I have an Ovenaire 10 MHz OSC 49-69 ser.no. 20823-3 which I am in need of a
pin-out and or any other information.
Thanks,
Jeff
___
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time
Hello Ulrich,
This is so true. See Tom's phase noise tests of a Russian Rubidium prototype
disciplined by a Fury GPSDO. Lot's of times there is not much space to put a
good OCXO inside the Rb's case.
BTW: using the Fury's 1PPS input, that unit can be used as a cleanup loop
for dirty Rb's
Have you checked my manuals page?
http://www.ko4bb.com/cgi-bin/manuals.pl
Search for "Ovenair"
There are pictures and an email indicating the Ovenair 49-62 was Option 1
for the HP 8656A signal generator, and information is available in that
manual. Send me a direct email if you can't find the ma
[EMAIL PROTECTED] wrote:
> Hello Ulrich,
>
> This is so true. See Tom's phase noise tests of a Russian Rubidium prototype
> disciplined by a Fury GPSDO. Lot's of times there is not much space to put a
> good OCXO inside the Rb's case.
>
> BTW: using the Fury's 1PPS input, that unit can be u
23 matches
Mail list logo
