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- HP-Agilent-Keysight-Equipment
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Re: Anybody have schematics or link for schematics of HP 3488A switch control unit?
开云体育I had one of these from Steve and it was perfect condition. ? ? Nigel ? From: [email protected] [mailto:[email protected]]
On Behalf Of Steve A via Groups.Io
Sent: 24 April 2019 14:55 To: [email protected] Subject: Re: [HP-Agilent-Keysight-equipment] Anybody have schematics or link for schematics of HP 3488A switch control unit? ? I have 3 of these 3488A's for sale in the UK if anyone needs them. |
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Re: Make backup PCMCIA card for E8285A?
Linux has PCMCIA Utils, which will allow you to do
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just about anything with any PCMCIA card. -Chuck Harris Steve Draper wrote: Based on my experience I'd say to give up on using anything other then MCE. |
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Re: Make backup PCMCIA card for E8285A?
Based on my experience I'd say to give up on using anything other then MCE. In my case I used an old laptop and had to open it up, cut a trace and connect 12 volts to the write protect line to be able to write to a card. I was then able to read/write/copy the firmware update, RFtools etc. Steve VE7FM |
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Re: HP 34401A repair and calibration
开云体育I could say many things re this. Lots of books on the topic. On 2019. 04. 24. 10:00, Dave_G0WBX via
Groups.Io wrote:
-- With best regards Tam HANNA Enjoy electronics? Join 15k7 other followers by visiting the Crazy Electronics Lab at |
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Re: Make backup PCMCIA card for E8285A?
On Wed, Apr 24, 2019 at 10:52 AM, William Hole wrote:
Eiger Linear PCMCIA MEMORY Flash PC CardHi, There used to be a demo 30 day verson of MCE. looks like it is still available but I've not tried this site. Use precautions, virus scan etc. There are other sites offering downloads. MCE does not need an ELAN interface. An old laptop with PCMCIA built in and running Win XP is your best bet. The Ebay USB reader probably only works in ATA mode i.e. is basicall a USB to PATA adaptor with a PCMCIA socket and thus won't recognise your Linear Flash. The card you have is suitable for back-up but as I said before the 89xB series do not support writing to FLASH or other kinds of PROM, they can only write to NV-RAM cards. They can read RAM, NV-RAM, ROM, PROM and LINEAR FLASH. Don't pay Syncrotech for MCE there is no indication they have the right to sell it and they offer no support. Robert G8RPI. |
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Re: Make backup PCMCIA card for E8285A?
开云体育Thanks so much to all for the replies!I have the original HP card “Agilent 11807A *100/Rev.B.02.01” which works in the E8285A, and I separately have the RF Tools files (both from Rick @ Amtronix — thanks!!). I need a backup CARD because so much depends on it, and I can’t risk enabling writing on my HP store configs, etc. On the E8285A, it is unfortunately very easy to erase the internal copies of the programs - requiring a reload from the card. That’s why I want to have a backup. I bought a “?2MB Eiger Linear PCMCIA MEMORY Flash PC Card PN# EPM-2000F”?with write protect switch,? which the E8285A sees but says is unformatted. ?then won’t format when I try. ?It says it’s?“Write protected"?? when it is switched to?“Write enabled’. ?The E8285A manual says it will format only the first 1 MB of a card over 1 MB. Wikipedia says there is a”The?card information structure?(CIS) is information stored on a PC card?“ and?“When a card is unrecognized it is frequently because the CIS information is either lost or damaged." ?(??).? Perhaps this could be corrected by reading the original image in Linux dd, and?writing to another card?? Questions, if anyone’s still with me <grin>: 1) Has anyone tried using Linux dd to duplicate the original card? ?If so, are special drivers or hardware needed? Perhaps antique PC with PC Card Type 1 hardware?? 2) Does anyone know of cards for sale which can be formatted in the E8285A? 3) On Win7 and HP200lx, I can’t read either card with an eBay USB 2.0 PC Card Reader which says it supports? ? “PCMCIA, PC CARD ATA, ATA Flash storage” even after trying multiple driver versions. 4) I can’t see a way to try the ELAN?Memory Card Explorer (MCE) software?without paying hundreds of dollars? for a license and which ?probably? would also need their adapter? Again, many thanks for all the help so far! ?Great Group!! |
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Re: HP 34401A repair and calibration
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Re: Clarification : Brass gears for the 8640B
Dave,
Why would I speak of misinformation if it wasn't? I'm really intrigued by the assumptions people are making in this thread. I have no motivation to "prove" what my gears are made of, whether they are "as good as gears made from blanks made/bought/machined in country X" or whether I have not copied someone else's design. What I do NOT do as a self-respecting professional is to make allegations or spread misinformation. There will be no more replies from me in this thread. I do not want to expend my energy or others' from their real work. To the dozens of you on this very forum who have ordered and re-ordered my gears and given me excellent feedback, thank you once again! Doubters are free to believe what they wish to. Best - Ram |
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Re: HP Schottky Diode 1901-0533
开云体育Not knowing the circuit if the two diodes are in parallel that might make sense. ?On the other hand .9V seems high for a silicon diode let alone a schottky, I thought those went more toward the .3 to .4 levelRegards, ? Stephen Hanselman Datagate Systems, LLC (775) 882-5117?office (775) 720-6020?mobile a Service Disabled, Veteran Owned Small Business DISCLAIMER: This e-mail and any attachments are intended only for use by the addressee(s) named herein and may contain legally privileged and/or proprietary information. If you are not the intended recipient, any dissemination, distribution or copying of this e-mail and any attachments is strictly prohibited. If you have received this e-mail in error, please immediately notify me and permanently delete the original and all copies and printouts of this e-mail and any attachments.On Apr 23, 2019, at 16:16, Jeff Zurkow via Groups.Io <jzurkow@...> wrote:
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Re: HP 34401A repair and calibration
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On Apr 23, 2019, at 7:03 PM, Stephen Hanselman <kc4sw.io@...> wrote:
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Re: HP 34401A repair and calibration
开云体育You young whippersnappers, we are coming up on 40. The proper calibration interval is once per year on the acquisition date. Of course operational verifications can be done anytime.?Regards, ? Stephen Hanselman Datagate Systems, LLC (775) 882-5117?office (775) 720-6020?mobile a Service Disabled, Veteran Owned Small Business DISCLAIMER: This e-mail and any attachments are intended only for use by the addressee(s) named herein and may contain legally privileged and/or proprietary information. If you are not the intended recipient, any dissemination, distribution or copying of this e-mail and any attachments is strictly prohibited. If you have received this e-mail in error, please immediately notify me and permanently delete the original and all copies and printouts of this e-mail and any attachments.On Apr 23, 2019, at 13:46, Dave McGuire <mcguire@...> wrote:
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Re: HP Schottky Diode 1901-0533
开云体育Also I don’t know about that division number. As I was coming into Opto-Elec (div 11??) they were just moving into their new digs which was building 91 and 93 down in Santa Clara.The way I heard it it had been Opto-Elec and Semiconductos in Bldg 11 and 12 (on Page Mill down from corporate) then they split that division up. Regards, ? Stephen Hanselman Datagate Systems, LLC (775) 882-5117?office (775) 720-6020?mobile a Service Disabled, Veteran Owned Small Business DISCLAIMER: This e-mail and any attachments are intended only for use by the addressee(s) named herein and may contain legally privileged and/or proprietary information. If you are not the intended recipient, any dissemination, distribution or copying of this e-mail and any attachments is strictly prohibited. If you have received this e-mail in error, please immediately notify me and permanently delete the original and all copies and printouts of this e-mail and any attachments.On Apr 23, 2019, at 15:19, Jeff Zurkow via Groups.Io <jzurkow@...> wrote:
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Re: HP Schottky Diode 1901-0533
开云体育Fat finger and old farts disease, I did get the info for the 1901-0533.The 100mA did look funny, but that would be abt. 40mW and it does make sense for a fed bias voltage drop Regards, ? Stephen Hanselman Datagate Systems, LLC (775) 882-5117?office (775) 720-6020?mobile a Service Disabled, Veteran Owned Small Business DISCLAIMER: This e-mail and any attachments are intended only for use by the addressee(s) named herein and may contain legally privileged and/or proprietary information. If you are not the intended recipient, any dissemination, distribution or copying of this e-mail and any attachments is strictly prohibited. If you have received this e-mail in error, please immediately notify me and permanently delete the original and all copies and printouts of this e-mail and any attachments.On Apr 23, 2019, at 15:19, Jeff Zurkow via Groups.Io <jzurkow@...> wrote:
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Re: Clarification : Brass gears for the 8640B
开云体育Fellow HP 8640 signal generator owners with damaged gears. I have been producing "sets"
of brass gears for either the 8640B and the the 8640 OPT 323
for nearly 10 years, and advertised them on this reflector on
occasion.? There is no question on the blanks that I use as to
where they come from and how they are made.? They are made
from cast brass in China and are purchased over the counter
from a American industrial company.? I just finished the installation of gears which appeared to be produced on a CNC machine for a fellow.? In my opinion, they were very nicely made gears, but was not a complete set.? They installed easily and are smooth operating.? I have no idea who made them or what the cost.? In the process of putting them in I learned that who ever sold them to the gentleman had plagiarized my installation package and sent the info under his post. As I have said in the past,
what ever I can do to help keep the old generators going I am
delighted to help with.? Making gear sets is definitely not a
major part of my retirement income.? hi? hi In conclusion, Yes I'm still making the HP 8640 gear sets.? If you are interested please feel free to contact me off list.? I will be happy to work with? you. 73 Paul K. WA0BAG? ..? |
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Re: HP 34401A repair and calibration
On 4/23/19 3:26 PM, mike bryce wrote:
This is going to sound silly, but this multimeter was a wedding gift from my wife, so it isn’t really only a piece of test gearPardon me for jumping in, but I don't think that sounds silly at all. Compatible spouses are a wonderful thing, and I have way too many friends who suffer through incompatible ones. -Dave -- Dave McGuire, AK4HZ New Kensington, PA |
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Re: HP 34401A repair and calibration
That is the wrong approach. Wifes always are but an auxillary.
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On 2019. 04. 23. 22:27, Chuck Harris wrote:
Wait! You recalibrate wives?? --
With best regards Tam HANNA Enjoy electronics? Join 15k7 other followers by visiting the Crazy Electronics Lab at |
Steve Draper
Michal Zawada
Dave McGuire
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