Hi List,
Besides a four sail ad, it's a bit of a bottom feeder story.
Several weeks ago, I made a post of 3 R-338's for sale. One was missing the
S-meter so I listed it a *parts unit*.
I also stated that FedEx shipping based on my experience for the units with
cases would be in the $125 range
List,
I'd like to do 1000 second TIC measurements with my 5370B but I don't want to
have to perchase A HP 1B prologic or similar controller for the timeing.
As long as I'm interested in the TIC difference but not an absolute value is it
reasonable to use the manual start/stop switches and a
List,
Is it practical to try and convert a HP 5370A to the B model. (I know that a
dedicated TN could do it.
Regards,
Perrier
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Esteemed List Members,
I have four new Midland glass encased 3.00 MHz HC 6 case style available.
Each one was given a S/N and were ordered for Hallicrafters circa. Ovenized
they would be excellent although I don't now what oven temp was specified.
Best guess is 85 C.
I can send world
List,
the item has been spoken for.
Regards,
Perrier
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Esteemed List Members (was Yo Dudes)
I have a HP 3455A 6.5 digit DVM that has stopped working. When turned on it
fails to complete the self-check routine. The display lights briefly.
I will send it to anyone who will pay shipping from 92220, Banning, CA. 17 x 20
x 3.5 inches. Approx 20
Yo Dudes,
Should one consider retrofitting HP 105's, Austron 1250's or HP 10811 power
supplies with the LT3042 for better performance? The price is modest. The HP
10811 suggested PS for the EFC is a 723 circuit that spedc's 6 microvolts
ripple IIRC.
Regards,
Perrier
List,
In getting documentation together for my HP 107BR I discovered the manuals I
was able to aquire were for prefix 333.
My unit prefix is 708. Does anyone have that prefix schematics or an errata
sheet? Or does the 708 prefix just designate another factory run?
TIA
Perrier
List,
When perusing HP xtal oscillators on ebay I noticed some cases were marked HP
10811 and the same appearing unit was marked HP 10811-60111.
Are both the same for TN purposes?
If so what are the differences?
Regards,
Perrier
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Regards,
Perrier
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List,
I bought the HP 107BR from ebay. It arrived very well packed and is as new on
the inside and 9.5/10 on the exterior. It requires a special A/N connector for
the AC power.
I also bought the Artek CD and D/L rhe manual from the K4OOB site. I
discovered that my model is of a later
List,
I have a 117 receiver that I never got round-to-it.
The tag on the unit sayes one tube is weak. I have at least one extra tube
(6CW4 IIRC) and more likely two.
It's avaiable for shipping from 92220.
If interested please send an ORIGINAL email off list.
Regards,
Perrier
List,
I've been following the ongoing mod process for the HP 5065A super on the list.
Two questions:
1. Are any of these upgrades applicable to the Lucnet and other Rb units?
2. Are there any other Rb units available (that don't cost you your first born
child IF they can be found) that could be
Hi,
I have a HP 420B Clip On DC Milliampmeter with Probe FS as I’mmoving in the
spring.
Current measured goes from 1 mA FS to 10 Amps FS.
I have not used it since I bought it several years ago. The reliable vendor
who sold it to me had guaranteedthat it worked. Will guarantee it
Hi,
I have a HP 54501A 100MHz digitizing o’scope
Two probes (notoriginal)
1ea HP 54501ADigitizing O’scop Front panel Operation Reference
1ea HP 54501ADigitizing O’scope Programming Reference
Screen is razor sharp. When first turned on a message shows in small type “cal
Hi,
Amongst my rubble I found 4 more HP test equipment catalogs.They are 1982,
1985, 1987, and 1991. $10each plus shipping from 92220 or $50 plus shipping
for all four. Yes, $50 for all four as I’ve got to put themin a box.
If interested, please send and ORIGINAL E-Mail. If you do a
Hi,
Amongst my rubble I found 4 more HP test equipment catalogs.They are 1982,
1985, 1987, and 1991. $10each plus shipping from 92220 or $50 plus shipping
for all four. Yes $50 for all four as I’ve got to put themin a box.
If interested, please send and ORIGINAL E-Mail. If you do a
HI,
At the request of a TN member (who wishes to remain anonymous)I started to
reproduce:
The Quantum Physics of Atomic Frequency Standards Volume 1By Jacques Vanier
Division de Physique,Conseil National de Recherches, Ottawa and Claude Audoin
Laboratoire de I’Horloge Atomique,
Thanks for all those that replied.
Regards,
Perrier
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Hi,
I have a HP 8590A that I got from Bob Camp in a trade. In the spring we will
be moving so I'm shedding some of my large TN gear.
I works OK but it may need to be cal'd if one wants precise mearsurments.
$365 plus shipping from 92220 about 30 lbs.
Regards,
Perrier
Hi,
I received an unexpected lost money just at Christmas time.
I had my eye on a GPSDO Symmetricom Inside GPS10MHz 1PPS GPS Disciplined Clock
& GPS Ant Display Refurbished $209.99 radioshackus.
It has a LCD display the shows some sat data.
At his time I'm not planning on running Lady Heather
sound like a 105D …
The 105B was a 1960’s
creature that had a 5 MHz crystal in it already.
Bob (who probably has eight typos in the sentence above :)
> On Apr 9, 2017, at 2:46 AM, Perry Sandeen via time-nuts <time-nuts@febo.com>
> wrote:
>
> List,
> Since I've been b
List,
Since I've been babysitting this unit for 20 years or so waiting for a-round-it
to arrive its probably to to pass it on to someone who would revive it.
It is a 100KHz ovenized crystal with an external reading mercury thermometer.
It has dividers down 100Hz and is equipped with a 2 inch
The unit has been sold.
Regards,
Perrier
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List,
I'm selling my HP 105B that has been "cooking" for the last 6 months and the
meter readings are all in the OK region and has a 5 MHz output which hasn't
been calibrated.
It has the pre-10811 10 MHz oscillator type and the PS is the of the earlier
version where the regulating transistor
List,
I am selling my Austron 1250A. The meter readings are all in the OK range and
has a 5 MHz output which I've not calibrated. It's in good cosmetic condition.
It comes with the factory manual,extender board, relay rack mounting brackets,
spare fuses and a AN connector for attaching an
List,
I'm culling my too extensive test equipment inventory.
I have two NBS System 358 Frequency Measurement Computers for sale
It works like this: You have a 5 MHz "A" input for your standard and a 5 MHz
"B" input for the DUT.
The computer has a "B" offset output that multiplies the error to
List,
The discussion about building a H Maser has been fascinating however it appears
that there will be a long time period before the project reaches fruition.
My questions for those that have a H Maser are:
Where and when did you get it and what was the cost?
Exactly what do you have to do
List,
A while back there was much discussion about temperature sensors.
One simple inexpensive one to consider would be the ZNI1000Temperature sensor.
It's 1K ohms at 0C and it replicates the temperature curve of the Pt 1K ohm
sensors.
It's about $3 from Digi-Key.
FWIW YMMY
Regards,
Perrier
List
It looks like their is as infinitely small chance of being able to get 5065.
So what can be done with the telco Rb's (mine are analog tuned) to wring the
best possible performance from them? Sooper Duper power supplies, Peltier (sp)
cooling modules?
Regards,
Perrier
List,
I recently bout a couple of USB male to USB male cables from Newegg.
About two weeks later I received a catalog from: Brake Manufacturing LLC.
They make inter-connecting cables for almost any type of connector with almost
any type of co-ax as well as selling almost any RF connector one
List,
There is always going to be some top posting however it has been six or seven
pages long multiple times lately.
I save all these on MS word for reference later. How about shortening these at
least a little bit please?
Regards,
Perrier
___
List,
Fair Radio which has been in the surplus electronics business almost forever
has two models of Fluke standards for sale. They have a sterling reputation.
FLUKE-332A $100 Voltage Standard - Used Reparable
FLUKE-332B $125 Voltage Standard - Used Reparable
IIRC, this means they will
List,
After all the problems that Bob Camp has noted with surplus OCXO's from China,
perhaps buying the new Lucent units on Ebay may save bad words and/or unhappy
actions.
LUCENT/SYMMETRICOMKS-24361 L101, Z3812A, RFTG-U REF-0 UNIT -CASE OF 2 EACH
$80 So for about $50 each delivered one has
Hi,
Wrote:I am the proverbial man with too many clocks and I don'tknow what time
it is.
To correct this situation I have decided to calibrateeverything.
I have a HP 5370B, a HP6370A, and a HP 5328A all with the TCXO
option.
Hi Peter,
You can't really calibrate the 5370B oscillator. I
List
Time may be relative, but physicists are a stickler for accuracy.
While many of us may give a few minutes’ grace to the timepieces in our homes,
one group of scientists has successfully synchronized a pair of optical clocks
to within a million billionths of a second.
By measuring time to
Hi,
I have rehabed three houses that I have owned that have cement basements. All
three were in Colorado.
Bare concrete will weep moisture. The solution is to paint (actually spread) a
product made by UGL. It is $125 for a five gallon bucket. It is a latex based
product that seals the
List,
Two Points
1. Switching regulator power supplies are here to stay and will replace most
transformer types as the are cheaper, smaller, and more energy efficient. They
have improved to the point of being used in medical equipment for patient
monitoring equipment that picks up milli-volt
Hi,
The battery problem becomes more convoluted every day. Due to family medical
issues I have not been able to do any testing/repairing.
The 105B charger is set up for nicads using some selected un-alterable charging
rate so to use an internal lead acid setup requires a different ps.
My unit
Hi,
In the two HP 105B's I recently acquired both had the 10 Mhz 3010A series
oscillator which appears to be pin for pin compatible with the HP 10811 series
but it has a resistor value listed on the outer case.
Trying to research it, the HP 105A/B supplement vaguely said to take a look at
the
List,
WTB for HP 105. please contact off list if you have one for sale.
Regards,
Perrier
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List,
I Goofed.
The 2848A late model info is on is on Dider's site as a HP 105B "Supplement".
The HP *Supplement* instructions are: butcher a perfectly good earlier model
service manual add info here and delete info there, pencil in changes making
the original manual a piece of garbage.
They
Hi,
Thanks to all who replied and made the lite in my brain go on.
Probably a great niche product but not for me.
Regards,
Perrier
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Hi,
Thanks for all the suggestions for the ski but I still have drawn a blank.
However I was able to get a large amount of similar data of of Dider's web site.
And thanks Charles for your phase noise postings. More for me to learn.
Regards,
Perrier
List,
Several years ago we were enthralled by the NIST designed Cs that still needed
cal once in a while.
It was listed for sale IIRC for $1400 or so.
Since then it has seemed to have fallen off of the radar screen.
Does anyone have any follow-up info?
Regards,
Perrier
Hi,
I bought a HP 105B that is a later version. All the manuals I've searched for
end up being for the original version.
My S/N prefix is 2848Ao or 0.
Plse reply off list if you have even just a ski.
Regards,
Perrier
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List,
I purchased a HP 105B oscillator on ebay and it arrived today. Previous to
getting it I D/L the manual and brief;y perused it.
So when I popped open the top cover to see the internal parts, what to my
wondering eyes appeared Not the A1 module shown in the manual but a 10811
lookalike.
Hi,
Several (many?) years ago National Geographic magazine show a picture taken
here in southern California of the state government sending red laser signals
between different mountain tops to keep track what was going on near fault
lines.
There were no technical details on what was taking
The manual has been sold.
Regards,
Perrier
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List,
I have a HP 5335A counter factory manual VGC.
$20 PLUS postage from 92220.
Please reply off list if interested.
Regards,
Perrier
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List,
I have 5 HP Test and Measurements catalogs which I will send for postage from
92220.
The years are 1982, 1985 (2), 1987, and 1991.
These are heavy suckers (bound books. I estimate postage to be $10 per book.
Please reply off list if interested.
Regards,
Perrier
List,
Usedoscilloscopes have gotten to the price where us experimenters can
affordexcellent ones at reasonable prices (my Tek 200 MHz dual bandwidth
was<$200).
I wastrained how to use them in the military but many haven't that experience.
Insorting out my papers I found a HP Bench Briefs
Hi,
It is rather depressing to me to hear RK and others remark about the
unreliability of HP test equipment.
There is one area where they had outstanding equipment.
I was involved with repairing HP medical equipment for 25 years and it was
awesome stuff. This was the same info I got from other
Hi,
One comment posted a while back warned that if the Morion OCXO's reached the
limit of their EFC range the could not manually re-tuned as others are.
That said, the newer ones posted seem to be using Trimble OCXO's.
Regards,
Perrier
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Hi,
Wrote: Since the front end chips are mixed signal ASIC’s, it will take more
than a bit of time to replace them directly. Re-doing the entire front panel
board is the most likely way to “fix”the problem. The question is - why do that
at all? Just do a PC instrument that does the same thing
List,
I'd like to buy up to 60 HP type II feet. I don't need the metal bail but it
would be OK to have also.
Please reply off list with amount and price. I also have some TN HP test
equipment that could be used in a trade/cash deal.
Regards,
Perrier
Hi,
I have six of the older style (anodized solid aluminum case) Lucent crystal
oscillators that I’d like to turn into simple 10 MHZ output GPSDO’s. I have
some salvaged HP cases so I can have a linear PS and all other stuff in one
package.
I’ve found two different choices of GPS relatively low
Hi,
Wrote:No, the temperature is not stable, not even close.
Wrote:Given that the TL431 is quite good at measuring temperature, that makes
itunsuitable in this case.
Wrote:There is a LOT more to making a good temperature-controlled
>environmentthan hacking together a DIY oven. Thatmay be
Hi,
Wrote: A possible solution mightbe to use two of the TL431 programmable shut
regulators. [Snip]
Wrote: That would be worse thanwhat is in my 5065 now.
OK, but why? The temperature would be stable so the resistorsand reference
diode wouldn’t drift.
Is the TL 431 not
Hi,
A possible solution might be touse two of the TL431 programmable shut
regulators. One to replace the zener diodeand the second to form a simple oven
using a thermistor and pot to set thetemp.
See: http://www.techlib.com/electronics/ovenckts.htmand TL431 data sheet for
details.
Then
Hi,
On the EEVBLOG (http://www.eevblog.com/forum/index.php)
They mention that the 2014-11-06version GPSDO that was “most extensively
tested, so far (by ke5x and others).
(Has a) known bug, outputfrequency is not exactly 10mhz (9,999,999.999,800 Hz).
This translates to ~2hzerror at
List,
http://www.dailymail.co.uk/news/article-3045499/Longitude-clock-stuns-experts-keeping-accurate-second-100-days-300-years-designed.html
Personally I’m blown away howsomeone can homer brew a mechanical clock like
this.
Regards,
Perrier
List,
I want to thank all the memberswho have answered my questions, many being you
really don’t want to do this andhere’s why as well as the current group that
generally posts to the list. I really don’t want to learn by trying thingsthat
have failed for others proving again to myself
List,
There has been a large exchangeof ideas for various home-brew or other video
box alternatives which all wouldseem to work OK.
For me it was simpler to buy asurplus HP 5087A for best offer which turned out
to be $300 delivered.
Besides having 12 outputs, youhave a choice of 3
List,
There has been a lot ofinformation on the list for 5 MHz frequency doublers.
As it is easier for me to buythan make, would using something like a
Mini-Circuits surplus DBM’s be anacceptable way to go?
Regards,
Perrier
___
List,
It appears from Bob Camp’sexperience (and others) that the Chicoms Morion
oscillators are to be avoided.
My question is: Could Bob Camp,Rick K. and other gurus with experience come up
with a list of the Ebay 10 MHzsurplus oscillators that would be worth buying as
well as what
List,
I won a 5370A from ebay. Though it seems to be missing the A channel level
knob, the unit was shown powered up with the correct 0.0 on the display,
although the unit was sold as non-working for parts or repair. But the price
was right with a best offer accepted.
So assuming (gulp) that
List,
Many, many years ago I think it was in EDN magazine that a circuit was
published that used two LM 723 regulators.
One was used as a heater circuit and the other as a voltage regulator.
I lost my paper copy in moving and found that that particular circuit is behind
a paywall.
If anyone has
List,
This TL 431 temperature regulator circuit might be useful.
www.techlib.com/electronics/ovenckts.htm
Regards,
PerriersandeenpaXXyatXXyahoo.com
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List,
I have reproduced a Motorola Lightning Protection article from the PPRA
newsletter from the early 80's.
If anyone wants a copy please send me an ORIGINAL email off list and I'll send
you a PDF.
I will also post a copy to Didier's web site in a few days.
Regards,
Perrier
List,
My two new OEM Lucent sets arrived today. As I suspected from reading the
previous posts, they are a total kettle of fish different from the older
*yellow finned* series.
Because I already have five of the *yellow finned* units I want to keep all my
Lucent units the same style.
I'm
List,
I have seen on the net a 10 MHz filter using 10.7 IFtransformers but have no
idea how well they would work for isolation with thenew style Lucent boxes.
Thoughts?
On Ebay venders are offering 10 MHz crystals for almostnothing if you buy 30.
My question wouldthese be good for
List,
I’ve digitized and edited an article titled* Circuit DividesFrequency by N+1 by
Bert Erickson, Fayetteville, NY from EDN 7/11/2002*.
Essentially, this circuit is expandable and allows for adivision by any number
plus one.
Anyone who wants a PDF copy please send me an original
List,
Wrote [Snip] The chain in the Z3810 / 3811 / 3812 Lucent
boxes is *much* different than the setup in the earlier parts. The phase noise
and ADEV on the Z3810’s is better than what you got on the earlier versions.
That’s good to know. I only have the older style units. It
will be
List,
There has been limited response from the list for bypass
caps for the HP 3586 and HP 5370. So this is what I was able to come up with:
HP 3586 25ea 470uF 50
Volt Panasonic 667-EEU-FR1H471B for $25 This
includes taxes, shipping to and my postage costs.
HP 5370X 50ea 150uF 50V
Wrote: At some point we will get into hacking the main board
to switch from 15 MHz to 10 MHz.
One doesn’t have to that if one uses the two IC divide by
1.5 circuit I offered the list. I specifically found it so I didn’t have to
hack the innards.
Wrote: The great news is the oscillator is 5
List,
Thanks to all for their comments.
Wrote: The high grade aluminum electrolytics and the
tantalums will look quite different on a network analyzer as you sweep them
from 100 KHz up.
OK. Since these of just being used for DC PS bypassing on
individual boards I think I’ll be OK with the
List,
The common denominator capacitor for the HP 3586 is 470 uF/
50V.
The HP 3586B uses about 18. The capacitor is a Panasonic P/N 667-EEU-FR1H471B
The common denominator capacitor for the HP 5370B is 105C /
6,000 Hr. 150 uF / 50V. The 3586 uses about 20.
I am willing to sell them for
List,
OK everybody, let’s not get our pacemakers wound upG
The problem. (Long Intro)
I have about 15 pieces or so of older HP test equipment.
3586B, 5370B, 5335A to name a few. Because of their age of 20+ years a few
have failed and need repair. I
have decided to go on a wholesale
List,
Wrote: The days of DIP parts are drawing to a close.
I was shocked, absolutely shocked, really, when I looked at
the latest Mouser catalog about the lack of PDIP I.C.’s.
That said, we are faced with a dilemma.
In all my HP test equipment I probably have 500 or more PDip
IC’s, so what
List,
I've assembled three PDF documents for the HP 3586B. An electrolytic capacitor
replacement list, a
15 KHz IF pick-off doc and the Beethoven audio test. You get three for the price
of one: FREE.
If interested, please send me a new email off line.
Regards,
Perrier
List,
I have just finished digitizing and repaginating *Modifying Lucent
RFG-M-RB Rubidium Frequency Standard* by Ivan Makarov. (m...@makarov.ca
Copyright
© 2011 VE3IVM).
He has made many modifications to solve a number of problems
that have been mentioned on the list lately.
If anyone
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