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Feet for HP8672A
Where does one got looking for new feet for the back of a 8672A? I just unwrapped my recent eBay purchase and its missing 2 of them. Unit seem to work and other than a broken off slide switch lever on the ALC selector I think I am a happy owner of a functional signal generator. Thanks Dave VE7HR -- 72 de Dave VE7HR |
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Please no more posts to this forum.
Dr. David Kirkby
Please go to /g/HP-Agilent-Keysight-equipment Somewhere between 21:00 GMT on Sunday, August 19th and?
09:00 GMT on Monday 20th August, I will set all messages to bounce, with hopefully a notice to say go to /g/HP-Agilent-Keysight-equipment The number of members on /g/HP-Agilent-Keysight-equipment is increasing rapidly, with around 2 members signing up every hour. -- Dr David Kirkby Ph.D C.Eng MIET Kirkby Microwave Ltd Registered office: Stokes Hall Lodge, Burnham Rd, Althorne, CHELMSFORD, Essex, CM3 6DT, United Kingdom. Registered in England and Wales as company number 08914892 Tel 01621-680100 / +44 1621-680100 |
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Reliability of FieldFox portable VNAs, SAs and combination analyzers
Dr. David Kirkby from Kirkby Microwave Ltd
Some years ago I bought a CertiPrime N9923A from Agilent. It developed a hardware fault within a month or so. A week or so ago I was talking to a customer of mine, who said he had heard reports from several sources about poor reliability of FieldFox instrumentsSometime later, someone I know bought an N9912A combination analyzer. I checked that for him. The performance was poor as a VNA, (dynamic range is typically 49 dB at 5-6 GHz), but I understand the N9912A is only for basic measurements. But the instrument worked okay. Then, despite me knowing that the N9912A is not a good VNA, I got the chance to pick one up cheap and bought it. That was dead on arrival. I'm just wondering if others have experienced this problem. I guess it is going to be hard to get any hard facts about this, as I doubt Keysight will be publishing MTBF data. Having handled a couple of N9912As (SA+VNA), and one N9923A (VNA), I'm impressed with the build quality. But now I am starting to wonder how relieable these instruments are. They might be quite risky used purchases. -- Dr David Kirkby Ph.D C.Eng MIET Kirkby Microwave Ltd Registered office: Stokes Hall Lodge, Burnham Rd, Althorne, CHELMSFORD, Essex, CM3 6DT, United Kingdom. Registered in England and Wales as company number 08914892 Tel 01621-680100 / +44 1621-680100 |
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Re: Machinable Potting Material ???
If you have a drill press, you can chuck a threaded screw and drill the tap hole for 4-40 by feeding the quill onto a drill bit held stationary in a chuck.? I used this technique to salvage an $85 air valve on a Toyota Tercel.
I'd broken a plastic teet off taking it off.? So I drilled the proper size hole in a length of a #10-24 screw, shaped the end with a file in the drill press, took it out.? I don't recall now if I used a tap or? cut a groove? to tap the plastic and.? I put epoxy on the threads and screwed it.? It worked like a charm. The principle here is that a rotating workpiece will cause the drill to follow the center of rotation.? You can see the setup I used here: It didn't aign as well as needed for the differential screw, but for your purpose it would be fine. |
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Re: intro on groups.io
Hello Pete,
I'm sure people will move up here slowly, at least I only got your post once............ Sunday, August 19, 2018, 11:20:25 AM, you wrote:
-- Best regards, ?John ? ? ? ? ? ? ? ? ? ? ? ? ? ?mailto:john@... |
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Re: intro on groups.io
Dr. David Kirkby from Kirkby Microwave Ltd
On Wed, 15 Aug 2018 at 19:49, saipan59 <saipan1959@...> wrote: I hope I'm not being a bore, but I don't see any posts yet on the new IO group, so I'm doing one. Hopefully that will change now. I've put a notice on the Yahoo group, asking people not to post there, and instead use here. The number of members is increasing rapidly now. 8 People have joined in the last couple of hours, and most people in the USA are probably asleep now. So hopefully this group will start working well soon. ? Dr David Kirkby Ph.D C.Eng MIET Kirkby Microwave Ltd Registered office: Stokes Hall Lodge, Burnham Rd, Althorne, CHELMSFORD, Essex, CM3 6DT, United Kingdom. Registered in England and Wales as company number 08914892 Tel 01621-680100 / +44 1621-680100 |
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IMPORTANT - Transfer to groups.io will commence soon. Please STOP POSTING here!
Dr. David Kirkby
I inadvertently sent the previous message before finish compiling it.? What happens next 1) Please stop posting here. If you require immediate support, join /g/HP-Agilent-Keysight-equipment now. The instructions and description of the group are there. If you don't require immediate support, then just wait and should hopefully get subscribed automatically. I say hopefully because a message from says ======== IMPORTANT: Yahoo Groups has been very unreliable lately. We will do our very best, but there is a good chance that we may not be able to transfer all of your messages, photos or files. We will tell you which ones we were not able to transfer. Also, the migration queue is several days long at this point. Please be patient as we work through the backlog of tranfer requests. ======== 2) I will wait until at least 21:00 GMT on Sunday, August 19th before bouncing messages on the HP/Agilent Yahoo group. If messages are still coming in, due to delays in the mail system, I might leave it as late as 09:00 GMT on Monday 20th August before bouncing messages. 3) The following messages will probably be deleted, on Yahoo, as the author does not want them transferred. I'm trying to negotiate a possible solution to this, but those might be deleted, so read them now if you want them. There's not a huge amount of information. 4) I will start the copying of data from Yahoo to . With the exception of those messages listed above, everything will hopefully be copied over, but I can't guarantee that. The message I received today from says the following =========== IMPORTANT: Yahoo Groups has been very unreliable lately. We will do our very best, but there is a good chance that we may not be able to transfer all of your messages, photos or files. We will tell you which ones we were not able to transfer. Also, the migration queue is several days long at this point. Please be patient as we work through the backlog of tranfer requests. ========== Note the migration may take several days, and may not be 100% complete. will give us good service. If you have any queries, please email me directly at drkirkby@... Dave, G8WRB Dr David Kirkby Ph.D C.Eng MIET Kirkby Microwave Ltd Registered office: Stokes Hall Lodge, Burnham Rd, Althorne, CHELMSFORD, Essex, CM3 6DT, United Kingdom. Registered in England and Wales as company number 08914892 Tel 01621-680100 / +44 1621-680100 |
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Re: Machinable Potting Material ???
¿ªÔÆÌåÓýJust fixed some stripped bakelite knobs from a 1920's radio using
4BA Helicoils - worked great! On 8/19/2018 4:14 AM, Peter Gottlieb
hpnpilot@... [hp_agilent_equipment] wrote:
? |
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IMPORTANT - Transfer to groups.io will commence soon. Please STOP POSTING here!
Dr. David Kirkby
As most of you will be aware, the Yahoo group has been unreliable, and a decision has been made to migrate the group over to I started the process several days ago, and are now ready to move on to the second stage. /g/HP-Agilent-Keysight-equipment /g/HP-Agilent-Keysight-equipment WHAT HAPPENS NEXT ========= IMPORTANT: Yahoo Groups has been very unreliable lately. We will do our very best, but there is a good chance that we may not be able to transfer all of your messages, photos or files. We will tell you which ones we were not able to transfer. Also, the migration queue is several days long at this point. Please be patient as we work through the backlog of tranfer requests ======== -- Dr David Kirkby Ph.D C.Eng MIET Kirkby Microwave Ltd Registered office: Stokes Hall Lodge, Burnham Rd, Althorne, CHELMSFORD, Essex, CM3 6DT, United Kingdom. Registered in England and Wales as company number 08914892 Tel 01621-680100 / +44 1621-680100 |
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Re: Machinable Potting Material ???
How about these? Thread one onto the end of a long 4-40 screw, heat it and push it into a pre-drilled hole? Once the plastic cools, it shouldn't be able to move.
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20x-4-4-40-Brass-Threaded-Heat-Set-Inserts-for-Plastic-3D-Printing-Metal-Nuts Michael A. Terrell -----Original Message-----
From: "Peter Gottlieb hpnpilot@... [hp_agilent_equipment]" I would think those better than any potting compound by far. Peter On Aug 18, 2018, at 9:14 PM, Leon Robinson leon-robinson@... [hp_agilent_equipment] <hp_agilent_equipment@...> wrote: What about Helicoils. Leon Robinson K5JLR From: "hglent@... [hp_agilent_equipment]" Greetings, I'm trying to save a couple old plastic knobs that have stripped set screw threads, that don't have brass inserts. I remember reading someplace about a machinable potting material that is easily flowed into a mold. I've tried JB Weld, but it doesn't flow well. It has a tendency to leave void areas. I want to drill a new set screw hole and hand tap it for 4-40 set screw. I remember seeing some discussion on potting material on one of the groups I read, so I'm asking for help. Any advice will be appreciated. I will also post this to some of the other groups I read. TNX es 73 de WABAG .. |
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Re: Machinable Potting Material ???
¿ªÔÆÌåÓýI would think those better than any potting compound by far.?Peter On Aug 18, 2018, at 9:14 PM, Leon Robinson leon-robinson@... [hp_agilent_equipment] <hp_agilent_equipment@...> wrote:
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Re: Machinable Potting Material ???
Leon Robinson
What about Helicoils. ? Leon Robinson ?? K5JLR Political Correctness is a Political Disease. From: "hglent@... [hp_agilent_equipment]" To: hp_agilent_equipment@... Sent: Saturday, August 18, 2018 5:02 PM Subject: [hp_agilent_equipment] Machinable Potting Material ???
?
Greetings, I'm trying to save a couple old plastic knobs that have stripped set screw threads, that don't have brass inserts.? I remember reading someplace about a machinable potting material that is easily flowed into a mold.? I've tried JB Weld, but it doesn't flow well.? It has a tendency to leave void areas.? I want to drill a new set screw hole and hand tap it for 4-40 set screw.? I remember seeing some discussion on potting material on one of the groups I read, so I'm asking for help.? Any advice will be appreciated.? I will also post this to some of the other groups I read. TNX? es? 73? de? WABAG? .. Paul K. |
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Re: Bit of the ordinary: command ref for old GC
See off-list mail.
-Dave On 08/17/2018 06:16 PM, Paul Amaranth paul@... [hp_agilent_equipment] wrote: Here's something a little out of the ordinary for this group. -- Dave McGuire, AK4HZ New Kensington, PA |
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Re: Machinable Potting Material ???
Tom Miller
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JB weld will flow if you heat it.
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Regards
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Machinable Potting Material ???
Greetings, |
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Re: Test and Measurement catalogue
Hello,
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just responded offlist. Tam With best regards Tam Hanna --- Enjoy electronics? Join 8300 other followers by visiting the Crazy Electronics Lab at On 18.08.2018 12:14, Nigel Adams nigel.adams@... [hp_agilent_equipment] wrote:
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Re: Mod thunderbird to avoid dupes (Re: Re: Too many Messages!!)
On 08/17/2018 06:26 PM, Artek Manuals manuals@... [hp_agilent_equipment] wrote:
Yes I have an edit pull down menu . No Options or preferences listed asYou can also get an add-on called "about:config Buttons". I added that to T-Bird a while back. Mark |
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Re: Too many Messages!!
FWIW its??? dead simple. Thunderbird (52.9.1) =
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???Tools - Options - General(tab) - Config Editor button on 3rd pane down (Advanced Configuration) then type/scroll to what you want. Typing 'dup' gets you there quick! Adrian On 8/18/2018 10:14 AM, Artek Manuals manuals@... [hp_agilent_equipment] wrote:
Kuba |