Re: HP active probe power connector availability?
Yes, the three pin for the HP probes... I've been rooting around on eBay looking for a cheap used probe, and most are missing the pwr pack and when the pwr supplies show they usually sell for more than I'd want to pay. I guess most folks used the instrument for the power source instead of an external supply.? ?I may end up with a Tek probe, depending on what bargain I find.
Pete
|
Re: Slightly OT: VNA test cables
So on the face of it it seems unreasonable but from the manufacturer's point of view it may not be the unhelpful rip-off it seems. Remember the cost to them of processing a single returned cable will be high, especially if they are not set up to do it routinely.
You will expect a fixed price for the repair and, presumably, the repaired item to meet the full specification and be returned to you with all the appropriate certification?
So it will arrive at their facility, it will need logging in to the 'system' someone will most likely have to be pulled from either their lab or production to assess the damaged item, issue a re-work plan and then attempt to repair it. They have to assume (I would on a simple cable) that in the worst case they cannot actually salvage it by re-making the damaged end and that makes it scrap and would then have to supply a new one anyway, plus they've had the additional pain of trying to fix it, and feeding it through their QA system and so on.
From the above you may assume I've been there! However, what we did in that situation was to simply offer the customer a replacement item but at a discounted cost, the amount of the discount did, I admit, vary with how sweet we wished to keep the customer concerned and was typically -30% (sweetish) to 'at cost' (very sweet!)
Adrian
toggle quoted message
Show quoted text
On 7/18/2019 8:40 AM, Tobias Pluess wrote: So I wonder:
a) is this normal? what do you do if something from such a connector breaks? I know it should not happen and they should be treated with extreme care, but accidents happen sometimes...
b) or is it only for the "cheap" cables that they don't repair them? I think not repairing such an expensive cable is quite dubious and if I need to buy a new cable I will for sure evaluate another manufacturer which is more trustworthy, like Huber+Suhner.
|
Re: Chips for 5315A/B counter: 1820-2131 and 1820-2312
Finding a donor unit sounds a bit like an
extreme solution... one reason being that shipment costs,
especially from the USA, are beyond reasonable.
... So I'm still looking for replacement chips. Any offers will be
considered !
Joel Setton
|
Re: 11713A Attenuator/Switch Driver (connectors)
Hello,
on the risk of sounding like a broken record - OEMsecrets.com to
the rescue.
For the pins, here, from MOQ one with various distributors like
Arrow de Verical:
For the connector, I did not find any distributor on the quick.
But there, one should be able to get a sample from the
manufacturer. If you need a business address, contact me offlist
and use my new one in Hungary.
Tam
With best regards
Tam HANNA
Enjoy electronics? Join 15k7 other followers by visiting the Crazy Electronics Lab at
On 2019. 07. 18. 1:24, Steve - Home
wrote:
toggle quoted message
Show quoted text
Mark,
CDM has a minimum order of 250 pieces for the connector and
100 pieces for the pins. A lifetime supply and then some. Have
you tried asking them for a sample of the pins? You might get
lucky. If not it’s cheaper to buy a parts unit that place a
minimum order at CDM!
On Jul 17, 2019, at 4:02 PM, Mark Bielman < mbielman@...>
wrote:
Hello Group. Picked up one of these units a
while back for testing attenuators and during initial
testing noted that one of the outputs did not activate the
solenoid. Figured it was a blown driver transistor. Many
moons later decided to track it down but everything looked
AOK. After more inspection and continuity tests, discovered
that there was a missing/broken pin on one of the Viking
connectors! Took some doing but I think I found them... they
do NOT come as a single item tho.
Here's the shell, p/n TBR12-101P
And the pins are sold separately, p/n DP-100AU
Available here:
Wondering if anyone has made such a repair. Are the pins
easily replaced? Maybe buy a shell with (maybe 15) pins
rather than just a few pins?
thx
Mark
|
Re: Slightly OT: VNA test cables
Hi Tobias,
I do not know how they mount the pin to the cable, but I could imagine the whole assembly has a limited number of mate/demates (maybe 1?) So, they will not guarantee performance up to 40 GHz, and because of "commercial reasons" will not do it -> "I got it repaired, but now it's not perfect anymore."
One could always try a "hack-a-fix", like I did with a 2,92 mm Attenuator:
(Sorry, German only, but pictures should be self-explanatory) In your case by salvaging another 2,92 mm connector.
All I experienced so far was: Cable broken -> To the bin. Never seen somebody actually repairing a pre-assembled test-port-cable in a professional context.
Best Regards, Martin
Hi Guys,
I have a slightly OT question.
We use at work a 40 GHz VNA and have microwave test cables with 2.92mm connectors from a well-known cable manufacturer whose name starts with G. Now, a colleague managed to break off one of the contact fingers of the female conductor, so this connector is actually damaged and useless. To me, the connector looks like it can be dismantled and the contacts can be exchanged; so I quoted the manufacturer for a repair of the connector or spare parts so we can do it by ourselves. However, they told me that it cannot be repaired and they don't sell spare parts; if something is damaged, I shall buy a new cable. Well, one of those microwave test cables costs around 2200$, so I am a bit pissed that I should buy a new cable when only a contact finger of a female conductor is broken.
So I wonder:
a) is this normal? what do you do if something from such a connector breaks? I know it should not happen and they should be treated with extreme care, but accidents happen sometimes...
b) or is it only for the "cheap" cables that they don't repair them? I think not repairing such an expensive cable is quite dubious and if I need to buy a new cable I will for sure evaluate another manufacturer which is more trustworthy, like Huber+Suhner.
Have you ever seen that a connector on a microwave VNA test cable got damaged, and what did you do?
Best
Tobias
|
Slightly OT: VNA test cables
Hi Guys,
I have a slightly OT question.
We use at work a 40 GHz VNA and have microwave test cables with 2.92mm connectors from a well-known cable manufacturer whose name starts with G. Now, a colleague managed to break off one of the contact fingers of the female conductor, so this connector is actually damaged and useless. To me, the connector looks like it can be dismantled and the contacts can be exchanged; so I quoted the manufacturer for a repair of the connector or spare parts so we can do it by ourselves. However, they told me that it cannot be repaired and they don't sell spare parts; if something is damaged, I shall buy a new cable. Well, one of those microwave test cables costs around 2200$, so I am a bit pissed that I should buy a new cable when only a contact finger of a female conductor is broken.
So I wonder:
a) is this normal? what do you do if something from such a connector breaks? I know it should not happen and they should be treated with extreme care, but accidents happen sometimes...
b) or is it only for the "cheap" cables that they don't repair them? I think not repairing such an expensive cable is quite dubious and if I need to buy a new cable I will for sure evaluate another manufacturer which is more trustworthy, like Huber+Suhner.
Have you ever seen that a connector on a microwave VNA test cable got damaged, and what did you do?
Best
Tobias
|
Re: HP active probe power connector availability?
Here it comes dp/1122804 Its not an exact replacement,but easy to modify--many use them this way. Could someone post a link to the lemo chinese link? Hardy -----Oprindelig meddelelse----- Fra: [email protected][mailto: [email protected]] P? vegne af hardyhansendk via Groups.Io Sendt: 18. juli 2019 07:02 Til: [email protected]Emne: Re: [HP-Agilent-Keysight-equipment] HP active probe power connector availability? Hi We have talked about this plug several times--as i recall its made by -binder-, When home i will look up the parts nr,---have made several myself, Regards Hardy -----Oprindelig meddelelse----- Fra: [email protected][mailto: [email protected]] P? vegne af John Griessen Sendt: 18. juli 2019 06:28 Til: [email protected]Emne: Re: [HP-Agilent-Keysight-equipment] HP active probe power connector availability? On 7/17/19 2:24 PM, radioconnection@... wrote: I? may be picking up a used HP active probe and I notice they require a dual voltage supply with an odd three pin power connector.? Since they are so costly, I was going to make my own.? Does anyone know if DigiKey or Mouser carries that connector and what it is? They may, but there is a Chinese Lemo copy that is OK. You're looking for a 3 pin, not the 4 pin that Tek scopes use, right? Ask me off list and I'll dig up my 4 pin, (half moon), source and you can try them out for that one. -- John --- Denne mail er kontrolleret for vira af AVG.
|
Re: HP active probe power connector availability?
Hi We have talked about this plug several times--as i recall its made by -binder-, When home i will look up the parts nr,---have made several myself, Regards Hardy -----Oprindelig meddelelse----- Fra: [email protected][mailto: [email protected]] P? vegne af John Griessen Sendt: 18. juli 2019 06:28 Til: [email protected]Emne: Re: [HP-Agilent-Keysight-equipment] HP active probe power connector availability? On 7/17/19 2:24 PM, radioconnection@... wrote: I? may be picking up a used HP active probe and I notice they require a dual voltage supply with an odd three pin power connector.? Since they are so costly, I was going to make my own.? Does anyone know if DigiKey or Mouser carries that connector and what it is? They may, but there is a Chinese Lemo copy that is OK. You're looking for a 3 pin, not the 4 pin that Tek scopes use, right? Ask me off list and I'll dig up my 4 pin, (half moon), source and you can try them out for that one. -- John --- Denne mail er kontrolleret for vira af AVG.
|
Re: HP active probe power connector availability?
On 7/17/19 2:24 PM, radioconnection@... wrote: I? may be picking up a used HP active probe and I notice they require a dual voltage supply with an odd three pin power connector.? Since they are so costly, I was going to make my own.? Does anyone know if DigiKey or Mouser carries that connector and what it is? They may, but there is a Chinese Lemo copy that is OK. You're looking for a 3 pin, not the 4 pin that Tek scopes use, right? Ask me off list and I'll dig up my 4 pin, (half moon), source and you can try them out for that one. -- John
|
Re: 11713A Attenuator/Switch Driver (connectors)
Good catch Steve - I did not see that. Found the pins on ebay ($25 for 25 items!) but will try a request for samples.
Mark
|
Re: 11713A Attenuator/Switch Driver (connectors)
Mark,
CDM has a minimum order of 250 pieces for the connector and 100 pieces for the pins. A lifetime supply and then some. Have you tried asking them for a sample of the pins? You might get lucky. If not it’s cheaper to buy a parts unit that place a minimum order at CDM!
toggle quoted message
Show quoted text
On Jul 17, 2019, at 4:02 PM, Mark Bielman < mbielman@...> wrote: Hello Group. Picked up one of these units a while back for testing attenuators and during initial testing noted that one of the outputs did not activate the solenoid. Figured it was a blown driver transistor. Many moons later decided to track it down but everything looked AOK. After more inspection and continuity tests, discovered that there was a missing/broken pin on one of the Viking connectors! Took some doing but I think I found them... they do NOT come as a single item tho. Here's the shell, p/n TBR12-101P And the pins are sold separately, p/n DP-100AU Available here: Wondering if anyone has made such a repair. Are the pins easily replaced? Maybe buy a shell with (maybe 15) pins rather than just a few pins? thx Mark
|
Re: HP active probe power connector availability?
I may have one of those power supplies that I could sell you. Standard HP manufacture, 4 outlets using the funny 3-pin connector.?
Jeremy? N6WFO
I? may be picking up a used HP active probe and I notice they require a dual voltage supply with an odd three pin power connector.? Since they are so costly, I was going to make my own.? Does anyone know if DigiKey or Mouser carries that connector and what it is???
Thanks
|
11713A Attenuator/Switch Driver (connectors)
Hello Group. Picked up one of these units a while back for testing attenuators and during initial testing noted that one of the outputs did not activate the solenoid. Figured it was a blown driver transistor. Many moons later decided to track it down but everything looked AOK. After more inspection and continuity tests, discovered that there was a missing/broken pin on one of the Viking connectors! Took some doing but I think I found them... they do NOT come as a single item tho. Here's the shell, p/n TBR12-101P And the pins are sold separately, p/n DP-100AU Available here: Wondering if anyone has made such a repair. Are the pins easily replaced? Maybe buy a shell with (maybe 15) pins rather than just a few pins? thx Mark
|
HP active probe power connector availability?
I? may be picking up a used HP active probe and I notice they require a dual voltage supply with an odd three pin power connector.? Since they are so costly, I was going to make my own.? Does anyone know if DigiKey or Mouser carries that connector and what it is???
Thanks
|
Re: Chips for 5315A/B counter: 1820-2131 and 1820-2312
Best to find a 5315A/B with a battered case, or blown input and rob that. Even a tidy 5316A does not cost a lot these days. Don't forget to check all power supplies carefully, I would not expect both chips to fail without some external cause.
Robert G8RPI.
|
Re: Chips for 5315A/B counter: 1820-2131 and 1820-2312
Hi Kevin,
The chips in both counters (5315A/B and 5316A) have the same
1820-xxxx part-numbers, hence they ARE identical. AFAIK, there's
never been an exception to this rule ! In addition, the feature
sets for the two models, and the user instructions are exactly the
same.?
Now of course, the hard part is finding replacement chips !
Joel Setton
|
Re: (Slightly OT) More HP-16C programs/examples?
On Tue, Jul 16, 2019 at 03:29 AM, Paul Berger wrote:
You may want to check the program libraries at MoHPC The forums are also a good place to ask questions as it has a large audience of HP calculator users.
Paul.
Thanks! I don't know how I hadn't stumbled onto their program library yet. Sean
|
Re: HP5335A rough calibration
There were repair kits for the original fuse failures, which consisted of 2 capacitors and the new fuse. I probably have a copy of the service note. The original fuse is socketed and the new fuse can simply put into the socket pins. Add/replace the new parts to the circuit card. For those that had to be soldered in, I used a temp controlled soldering iron and simply took the precaution to minimize the iron time on the joints. I never had a repeat fuse failure on any oven I repaired. I would not replace the fuse with any thing larger in current or above the temp limit. The fuse in the heater circuit is there to protect the oven and insure it does not exceed its operating temp limit. When the ovens exceed their temp limits - thermal runaway, the insulating foam deteriorates, the outside can becomes discolored - heat bluing, and often the crystal is often stressed and probable will be out of tolerance, unstable in the future.
Don Bitters
|
looking for HP knobs p/n 0370-0102
I'm looking for two HP knobs, both part number 0370-0102. An example
of this knob is the 0.5" bar + pointer knob used on the HP 6205B power
supply, as the smaller knob on left and upper right range control
switches on the upper left and upper right.
I've seen some of these in black and some in red, and I'm not sure if
they have different part numbers. I don't really care what color I get
as long as the two I get are the same.
Globaltest has a red one in stock at a reasonable price, so if someone
here also has one available in red, that'd work.
Anybody gots?
Thanks,
-Dave
--
Dave McGuire, AK4HZ
New Kensington, PA
|
Re: HP5335A rough calibration
Dan, ? I suspect the fuse serves two purposes, both electrical (1A) and thermal (115C).? I would favor replacing with one of same ratings, or at least as close as you can get. ? I also seem to remember that the fuse fits in a ‘socket’ (or more precisely, two ‘sockets’).? However, it’s been years since I’ve seen the inside of a 10811.? If indeed soldered, I would favor the use of a hemostat as a ‘heatsink’ and being very fast. ? Good luck. ? Joe ?
toggle quoted message
Show quoted text
From: [email protected] [mailto:[email protected]] On Behalf Of Dan Nessett via Groups.Io
Sent: Tuesday, July 16, 2019 4:59 PM
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] HP5335A rough calibration ? I have finally got around to attempting to fix my HP 11811. I took off the cover and as many suggested the thermal fuse is the problem. It is an open circuit. I looked at the link provided by Don Bitters (thanks for that) and read through the instructions. I have two questions that I hope others might help me answer. First, the fuse chosen by Simon was a 109 degree C 10A cut-off. I poked around and found that the original part was rated for 115 degree C at 1A (see ?fifth post down by J. L. Trantham). I found some 115 degree C 2A fuses, which I have ordered (EYP-2BN110) from ebay. I am not sure why Simon chose 10A (probably, the only ones he could find at the time), but if there was a reason for 10A and not 1A or 2A and someone can fill me in, that would be appreciated. The other question is more important. In Simon's post, he states: "An exact match for the thermal fuse could not be found, so just soldered in (very carefully, cooling the case and leads!) a 10 Amp 109 degC fuse." The key to this repair is "very carefully, cooling the case and leads!)" However, he does not give any detailed advice how to execute this instruction. I looked on the internet for guidance how to solder thermal fuses and found two Youtube videos. The first submerged the leads of the thermal fuse in water before soldering them to wire leads. The other used an infrared camera to monitor the temperature of the leads while soldering them. I don't have an infrared camera and submerging the thermal fuse leads in water isn't going to work with the confined space that exists on the 11811. So, can anyone give me some advice how to keep the temperature of the fuse leads below 115 degrees C while soldering? In other words, in detail how do you cool the case and leads while soldering in the fuse?
|
Martin Rickes
Jeremy Nichols
Dave McGuire