Re: Power indicator lamps
I have a few #12 lamps if you want to contact me...
#12 6.3V 0.15A G4Fil G3-1/2Glass HP 2140-0012 2 Stiff pins
Dan in Chandler, AZ
============================================
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--- In hp_agilent_equipment@..., "J. Forster" <jfor@...> wrote:
From a friend:
The bulb they are looking for is a 6.3V No. 12 Bulb Unfortunatly out of
production for several years... Nothing current fits exactly.. :-(
There is one way over priced vendor now listing them on ePay..
see item 310375852620
While restoring a supply for one of my entries in the HP powersupply
contest, I found just enough spares cabinet slavaged from reuse...
BTW did you ever hear who won the contest? I never got a responce
to my SASE... After what was a very low key anouncment, It didn't seem
like HP had much enthusasism for the contest...
-John
=============
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Re: HP 6034L troubleshooting
Turns out all the issues were due to a leaking 220uF 50V cap for the -12V on the power mesh board. Threw a new one in, and the power supply is happy again. Total cost of the repair was under 1$... I initially thought it was a bad op amp on the A2 board as both the -12/+15 lines were low. I should of probed the unregulated DC lines first...
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--- In hp_agilent_equipment@..., "jayw_comark" <jayw_comark@...> wrote:
IIRC The L version was for low line voltage input. It had somewhat reduced output specs. I would chase down the low voltage on the +15VDC and -12VDC. Is there any ripple on them?
Jay
--- In hp_agilent_equipment@..., "tek_will" <dj_logik101@> wrote:
I have acquired a 6034L GBIB system power supply with a bit of an issue. As soon as I power it up, it goes into CC Limit mode with the CV normal LED blinking very fast. I can adjust the voltage output only till about 35Vdc, after that the output gets unstable, and the UNREGULATED LED lights up. I cannot adjust the current output, which is stuck at 420mA on the units display. Default voltage when powered up is 370mV. This is with no load connected to the output terminals and the sens terminal strapped to the output.
The power-up self test passes, but if I initiate the complete self test mode, it seems to fail Power Mesh Mode Error 5.
I checked the voltages on the A2 control board and the +15 and -12 Vdc are a little low at +12 and -9Vdc. +5, +15 and -12 Voltages are normal on the A3 front panel board. The control voltages from the DAC for the CC and CV modes all seem to vary from 0 to 5V when I vary the front encoder in both CC and CV modes.
I can't find any documentation on the L version, but do have and have been going by the A version manual. Not sure what the differences are though.
Any help would be greatly appreciated.
Thanks,
Will
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Re: making 50 ohm measurements with a 75-ohm s-parameter test set
Hi David,
Thanks for the detailed info on cal and measurements. I will keep your solution in mind, but for now I am going to try to piece together "standards" accurate enough for my amateur radio antenna measurements. I am sure it will take me a good deal of time and experimentation to confirm I have good standards, but that is part of the fun.
Bryan
--- In hp_agilent_equipment@..., David Kirkby <david.kirkby@...> wrote:
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Re: making 50 ohm measurements with a 75-ohm s-parameter test set
Hi Brooke,
Thanks much for the Mini Circuits suggestion and the info on your web page. I decided to experiment with this approach using a ZFDC-10-2-N coupler, which has excellent directivity in my range of interest (up to 450 MHz).
So far, the results have been very encouraging! I am seeing RL of ~ 50 dB after calibration with my reference load connected. Of course, the accuracy of my cal "standards" still questionable, but at least this gives me an idea what is possible. A definite advantage of this approach compared to using the 75-ohm test set + matching pads is the better response measurement range, since there is less attenuation in the path.
Bryan
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--- In hp_agilent_equipment@..., Brooke Clarke <brooke@...> wrote:
Hi Bryan:
You might get a Mini Circuits ZFDC-10-1 coupler. See:
and
Note the marker is near the 50 MHz vertical line and the line just to it's right is 100 Mhz because of the LOG frequency
scale.
The vertical line over the "0" in POWER 0 dBm" is 100 kHz and above that frequency you can see over 40 dB return loss.
Have Fun,
Brooke Clarke
hp_agilent_equipment@... wrote:
making 50 ohm measurements with a 75-ohm s-parameter test set
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HP8566B tracking with a HP83620A
Does anyone know if it is possible to get these 2 units to track together. I want to be able to use some directional couplers and sweep some feedhorns and antennas. I have looked everywhere on the net and can not find any info on doing this. HP used to be able to interface most of their equipment together to be able to do this...anyone out there know of a easy way?
Mark
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Re: Service notes and Change Pages Scanning Project update
TO BE SURE :-)
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On 3/12/2013 9:35 PM, J. Forster wrote:
Dave,
Your call, but a suggestion:
The people who get a pile, should absolutely commit that if the don't scan
the stuff, they will return the originals to you or pass them on to
someone who will do the job.
I've lent some unique doc to a guy (not you) and he never scanned it, or
returned it either.
Best,
-John
=================
Sorry for the silence on this one guys
After reading the comments it is pretty clear to me that most of the
respondents don't really appreciate the problems associated with
scanning this pile of docs... no offense intended.
The other factor is that as I began dragging this stuff out it became
pretty clear to me that it is likely more than 1000 pages.
So in round one I will go back over the the list of volunteers and pick
3 tomorrow . I will then split the initial package into 3 piles and send
a pile to each of you , if after you get through the initial package you
still want to play I will send you additional piles. If you decide it
was more thna you thought and you just really dont have the time , no
harm no foul
Cheers
Dave ArtekManuals
--
Dave Henderson
Manuals@... <mailto:Manuals%40ArtekManuals.com>
www.Artekmanuals.com
PO Box 175
Welch,MN 55089
651-269-4265
--
Dave Henderson
Manuals@...
www.Artekmanuals.com
PO Box 175
Welch,MN 55089
651-269-4265
|
Re: Service notes and Change Pages Scanning Project update
Dave,
Your call, but a suggestion:
The people who get a pile, should absolutely commit that if the don't scan
the stuff, they will return the originals to you or pass them on to
someone who will do the job.
I've lent some unique doc to a guy (not you) and he never scanned it, or
returned it either.
Best,
-John
=================
toggle quoted message
Show quoted text
Sorry for the silence on this one guys
After reading the comments it is pretty clear to me that most of the
respondents don't really appreciate the problems associated with
scanning this pile of docs... no offense intended.
The other factor is that as I began dragging this stuff out it became
pretty clear to me that it is likely more than 1000 pages.
So in round one I will go back over the the list of volunteers and pick
3 tomorrow . I will then split the initial package into 3 piles and send
a pile to each of you , if after you get through the initial package you
still want to play I will send you additional piles. If you decide it
was more thna you thought and you just really dont have the time , no
harm no foul
Cheers
Dave ArtekManuals
--
Dave Henderson
Manuals@...
www.Artekmanuals.com
PO Box 175
Welch,MN 55089
651-269-4265
|
Service notes and Change Pages Scanning Project update
Sorry for the silence on this one guys
After reading the comments it is pretty clear to me that most of the respondents don't really appreciate the problems associated with scanning this pile of docs... no offense intended.
The other factor is that as I began dragging this stuff out it became pretty clear to me that it is likely more than 1000 pages.
So in round one I will go back over the the list of volunteers and pick 3 tomorrow . I will then split the initial package into 3 piles and send a pile to each of you , if after you get through the initial package you still want to play I will send you additional piles. If you decide it was more thna you thought and you just really dont have the time , no harm no foul
Cheers
Dave ArtekManuals
--
Dave Henderson
Manuals@...
www.Artekmanuals.com
PO Box 175
Welch,MN 55089
651-269-4265
|
Free for postage 5045A Ops/Service Manual
Title says it all. heavy shipping weight 4lbs
Preference given to someone who actually owns one of these toads
, checks preferred , PayPal accepted -add $.50
Dave
--
Dave Henderson
Manuals@...
www.Artekmanuals.com
PO Box 175
Welch,MN 55089
651-269-4265
|
Re: Power indicator lamps
BTW did you ever hear who won the contest? I never got a responce
to my SASE... After what was a very low key anouncment, It didn't seem
like HP had much enthusasism for the contest... Winners are listed here:
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Re: Power indicator lamps
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----- Original Message ----- From: "J. Forster" <jfor@...> To: <hp_agilent_equipment@...> Sent: Tuesday, March 12, 2013 2:42 PM Subject: [hp_agilent_equipment] Power indicator lamps From a friend:
The bulb they are looking for is a 6.3V No. 12 Bulb Unfortunatly out of
production for several years... Nothing current fits exactly.. :-(
There is one way over priced vendor now listing them on ePay..
see item 310375852620
While restoring a supply for one of my entries in the HP powersupply
contest, I found just enough spares cabinet slavaged from reuse...
BTW did you ever hear who won the contest? I never got a responce
to my SASE... After what was a very low key anouncment, It didn't seem
like HP had much enthusasism for the contest...
-John
Perhaps this is a different No.12 but the ones I am familiar with are small bi-post lamps with the same voltage and current as a No.47. These are available and not expensive. Beside being used as pilot lamps they are also found in the Drake TR-4 in series with the receiving antenna line as an input stage protector. I don't remember where I got mine, probably Amazon but try Bulbman or one of the other web lamp stores. -- Richard Knoppow Los Angeles WB6KBL dickburk@...
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From a friend:
The bulb they are looking for is a 6.3V No. 12 Bulb Unfortunatly out of
production for several years... Nothing current fits exactly.. :-(
There is one way over priced vendor now listing them on ePay..
see item 310375852620
While restoring a supply for one of my entries in the HP powersupply
contest, I found just enough spares cabinet slavaged from reuse...
BTW did you ever hear who won the contest? I never got a responce
to my SASE... After what was a very low key anouncment, It didn't seem
like HP had much enthusasism for the contest...
-John
=============
|
HP 851B Spectrum Analyzer Display FREE (Just pay shipping)
Hello all,
I have an HP 851B spectrum analyzer display section. This is the first wide band calibrated spectrum analyzer from HP, a real classic! Compared to modern units, its big and heavy, but it still has great capabilities. It goes all the way up to 12 ghz.
Unfortunately, I don't have the whole analyzer, just the IF/Display portion.
The full working spectrum analyzer is two units: The 851B and the RF section, the 8551B.
Without the 8551B, the display is not of much use to me. I might consider picking up an 8551B (they come up on eBay once in a while and are not terribly expensive) but I don't have the space.
I want to get rid of the 851B, but I can't bring myself to throw it away. These units are well built, solid and a classic example of good American engineering. This once cost someone an arm and a leg to buy new.
I'd like to give it to a good home. If you are interested in a spectrum analyzer, this is a good start. You should be able to track down the 8551B without spending too much.
I should note: I don't have the power cable and I can't fully test it even if I did. It worked last time it was used a few years ago, but I'm going to have to put it up "AS-IS"
I live in Hamden, CT. If you can get to my area to pick it up, it's yours for free. If not, you will have to pay to pack and ship it. This will probably run somewhere around $75 in the US.
Here is some info:
I can provide some pictures if you are interested. The unit is in good shape. A few minor cosmetic defects, which you would expect for its age.
Anyone interested?
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Re: Anyone used Eglink in Korea for test equipment?
Perhaps that is it. My merchant account was a third party
affair, as are all merchant accounts... nobody, but maybe a
Costco, is big enough to have a direct link into the association.
I can't imagine anyone signing an agreement that didn't make
the third party (bank) responsible for stolen cards. That
would be very risky. The whole point of CC's is to insure the
risk by the vendor paying a discount.
The one area that always worried me most was the dishonest
credit card owner... not the credit card thief.
-Chuck Harris
Peter Gottlieb wrote:
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It depends on the bank. When I ran a company we would get confirmation numbers
and also had a third party service. Stolen cards were our responsibility as far
as the association was concerned, but we did get part of it paid by the third
party verification company when it happened.
There are a lot of clever cheats out there.
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Re: Anyone used Eglink in Korea for test equipment?
It depends on the bank. When I ran a company we would get confirmation numbers and also had a third party service. Stolen cards were our responsibility as far as the association was concerned, but we did get part of it paid by the third party verification company when it happened.
There are a lot of clever cheats out there.
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On 3/12/2013 4:59 PM, Chuck Harris wrote:
If the item is purchased with a stolen credit card, the card owner
will not pay the charge, and if the vendor got a confirmation number,
the vendor will not lose his sale... the association will eat the loss.
I think sometimes scenario's like you describe take on a life of their
own... The original story was perhaps a partly correct description of the
events, that in the retelling got embellished to a point where it simply
wasn't true.
Back when I had a merchant account, and was selling things internationally
using credit cards, that exact situation was described in the FAQ they
gave me, and they said I was protected as long as I followed the procedure
outlined in my merchant agreement.
Basically, my 100% foolproof insurance against such things happening was
to use my CC terminal. When I put in the CC number, it asked me for
the billing address of the card, and depending on whether it was Visa
or MC, the CCID from the back of the card. After I entered the information,
they either gave me a confirmation number, or denied the transaction.
If I didn't get a confirmation number, I didn't do the sale.
The only way I could get into trouble was if the customer filed a dispute
with the CC company saying that I didn't deliver the goods, or they were
defective... something like that. At that point, I would have to provide
proof of delivery, or the customer would have to provide proof that the
goods were defective, or not as described.
-Chuck Harris
David DiGiacomo wrote:
On Tue, Mar 12, 2013 at 1:52 PM, Chuck Harris <cfharris@... <mailto:cfharris%40erols.com>> wrote:
Not entirely true. Stolen cards are not a problem for the vendor
if he runs the card and gets a confirmation code back from the
association. ...
Where the vendor can lose his money is if the cardholder disputes
the charge. If that happens, the vendor will have the money taken
back immediately, and it will not be returned until the dispute is
resolved. If the dispute is resolved in the favor of the cardholder,
the vendor will lose the money, and be fined by the association... These 2 statements seem inconsistent to me.
If it's a stolen card or other fraudulent charge, won't the cardholder
win the dispute?
Anyway, I have heard from a number of sellers about this exact fraud
scenario... shipped the order to Singapore or Korea, got a chargeback
two months later, lost the goods and the money.
--------------------------------------------------------------------------------
No virus found in this message.
Checked by AVG - www.avg.com <>
Version: 10.0.1430 / Virus Database: 2641/5666 - Release Date: 03/12/13
|
Re: Anyone used Eglink in Korea for test equipment?
If the item is purchased with a stolen credit card, the card owner
will not pay the charge, and if the vendor got a confirmation number,
the vendor will not lose his sale... the association will eat the loss.
I think sometimes scenario's like you describe take on a life of their
own... The original story was perhaps a partly correct description of the
events, that in the retelling got embellished to a point where it simply
wasn't true.
Back when I had a merchant account, and was selling things internationally
using credit cards, that exact situation was described in the FAQ they
gave me, and they said I was protected as long as I followed the procedure
outlined in my merchant agreement.
Basically, my 100% foolproof insurance against such things happening was
to use my CC terminal. When I put in the CC number, it asked me for
the billing address of the card, and depending on whether it was Visa
or MC, the CCID from the back of the card. After I entered the information,
they either gave me a confirmation number, or denied the transaction.
If I didn't get a confirmation number, I didn't do the sale.
The only way I could get into trouble was if the customer filed a dispute
with the CC company saying that I didn't deliver the goods, or they were
defective... something like that. At that point, I would have to provide
proof of delivery, or the customer would have to provide proof that the
goods were defective, or not as described.
-Chuck Harris
David DiGiacomo wrote:
toggle quoted message
Show quoted text
On Tue, Mar 12, 2013 at 1:52 PM, Chuck Harris <cfharris@...> wrote:
Not entirely true. Stolen cards are not a problem for the vendor
if he runs the card and gets a confirmation code back from the
association. ...
Where the vendor can lose his money is if the cardholder disputes
the charge. If that happens, the vendor will have the money taken
back immediately, and it will not be returned until the dispute is
resolved. If the dispute is resolved in the favor of the cardholder,
the vendor will lose the money, and be fined by the association... These 2 statements seem inconsistent to me.
If it's a stolen card or other fraudulent charge, won't the cardholder
win the dispute?
Anyway, I have heard from a number of sellers about this exact fraud
scenario... shipped the order to Singapore or Korea, got a chargeback
two months later, lost the goods and the money.
|
Hi all,
Many times, I will send an email to this list and it will literally never arrive. So I have taken to posting messages directly into the Yahoo user interface especially for messages with links (it seems that if my email has links that it is more likely to never arrive to the list). Today I posted a message directly into the yahoo UI and it never appeared (when I say appeared, I mean looking at the messages directly on the yahoo website).
Does anyone know who the owner of this list is (I have emailed list-owner many times with no response in the past)? Does anyone know if messages are moderated, if, say, they contain links?
Thanks
Eugene W2HX
PS Hopefully this message will come through!
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Re: Anyone used Eglink in Korea for test equipment?
On Tue, Mar 12, 2013 at 1:52 PM, Chuck Harris <cfharris@...> wrote: Not entirely true. Stolen cards are not a problem for the vendor
if he runs the card and gets a confirmation code back from the
association. ... Where the vendor can lose his money is if the cardholder disputes
the charge. If that happens, the vendor will have the money taken
back immediately, and it will not be returned until the dispute is
resolved. If the dispute is resolved in the favor of the cardholder,
the vendor will lose the money, and be fined by the association... These 2 statements seem inconsistent to me. If it's a stolen card or other fraudulent charge, won't the cardholder win the dispute? Anyway, I have heard from a number of sellers about this exact fraud scenario... shipped the order to Singapore or Korea, got a chargeback two months later, lost the goods and the money.
|
Re: Anyone used Eglink in Korea for test equipment?
Not entirely true. Stolen cards are not a problem for the vendor
if he runs the card and gets a confirmation code back from the
association.
The vendor's "discount rate" for a given transaction changes
depending on the level of verification he applies. For instance,
his discount rate is at its lowest if he manually scans the card in
his reader, and observes the card's CCID, expiration date, and
signature... this is why you used to see clerks circle the expiration
date back in the days of paper charge slips... If the vendor gets
the number over the phone, mail, or internet, his discount will be
higher depending on how many verification steps he does. That is why
you get asked for the card's CCID, the card's billing address, or
the customer service phone number from the back of the card.
OBTW, the "discount" is how much the association "discounts" from the
money the vendor receives from the transaction.
Where the vendor can lose his money is if the cardholder disputes
the charge. If that happens, the vendor will have the money taken
back immediately, and it will not be returned until the dispute is
resolved. If the dispute is resolved in the favor of the cardholder,
the vendor will lose the money, and be fined by the association...
The fines can be very strict depending on what exactly happened.
[One thing not known by most folks is these cash back credit cards
that give you frequent flier miles, or some percentage of your
charged total back, have a higher discount to the vendor than cards
that don't do that nonsense. The stores pay for your frequent flier
miles, or cash back... and they are not allowed to say no.]
Once a wire transfer has been received in the target account, the
sender has no recourse at all.
-Chuck Harris
Peter Gottlieb wrote:
toggle quoted message
Show quoted text
Yeah, gotta love that. "We need to charge usurious interest rates because of the
high risks" and then they shift all the risk to their clients.
On 3/12/2013 1:29 PM, David DiGiacomo wrote:
It's a risk to the seller, not the buyer. If it's a stolen card, you
can get a chargeback months later, and have no recourse.
--------------------------------------------------------------------------------
No virus found in this message.
Checked by AVG - www.avg.com <>
Version: 10.0.1430 / Virus Database: 2641/5666 - Release Date: 03/12/13
|
Re: Anyone used Eglink in Korea for test equipment?
Yeah, gotta love that. "We need to charge usurious interest rates because of the high risks" and then they shift all the risk to their clients.
toggle quoted message
Show quoted text
On 3/12/2013 1:29 PM, David DiGiacomo wrote:
It's a risk to the seller, not the buyer. If it's a stolen card, you
can get a chargeback months later, and have no recourse.
--------------------------------------------------------------------------------
No virus found in this message.
Checked by AVG - www.avg.com <>
Version: 10.0.1430 / Virus Database: 2641/5666 - Release Date: 03/12/13
|
