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HP 5335A - Need some parts.
Tom Miller
Hello to the group,
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I picked up an ebay special, does not power up but fan comes on. Ok, that one almost came with an easy button. The 5 volt regulator transistor was lose in its socket (TO-3). Fixed that, got back the +5 and panel came up. I could not get any input to count. So I opened it back up and there is a problem, the two ribbon cables from the amp to the front panel are missing. That's amazing as the calibration stickers were untouched. Long story short, does anyone have those two cables for sale? It's a 2 1/2 inch long ribbon cable with a 18 pin dip plug on each end. It plugs into a 18 pin x .3 IC socket on each end. There are two cables needed. Thanks for reading, Tom PS. Diego, thanks for putting the 1.1 version up on KO4BB. That will be my next project after I find some cables. ----- Original Message -----
From: diego.moimas To: hp_agilent_equipment@... Sent: Monday, December 17, 2012 6:00 AM Subject: [hp_agilent_equipment] Re: HP 5335A - All Leds Light but Never Go Off - No Error Messages P.S.: my FW1.1 is actually @ , I'll send Didier's an email asap --- In hp_agilent_equipment@..., "diego.moimas" <diego.moimas@...> wrote: > |
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Re: HPIB Cables................needed
cnc_joker
Give these guys a call;
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Last time I was there they had a box full and were getting $2 or $3 each. Around here they aren't worth much. ESS has stuff on ebay all the time and they must not think they are worth listing. Pete. --- In hp_agilent_equipment@..., "David Garrido" wrote:
Does anyone have some HPIB cables that need a good home? Not looking for free, but asking here before I go to the bay. Just good ones to start trying out the HPIB options available to me. Maybe couple of .5 meter straight as well as right angle, couple of 1.0 meter, and a 2 meter would be nice. Cheers |
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Re: HPIB Cables................needed
Darn it!!!!
Yes, Cleveland, OH, USA, 44107 On Dec 18, 2012, at 8:16 PM, Alan Melia wrote: Hi David I presume you are in the States so it will not be worth offering [Non-text portions of this message have been removed] |
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Re: HPIB Cables................needed
Hi David I presume you are in the States so it will not be worth offering you from my stock :-((
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Alan G3NYK (UK) ----- Original Message -----
From: "David Garrido" <d.garrido@...> To: <hp_agilent_equipment@...> Sent: Wednesday, December 19, 2012 12:58 AM Subject: [hp_agilent_equipment] HPIB Cables................needed Does anyone have some HPIB cables that need a good home? Not looking for free, but asking here before I go to the bay. Just good ones to start trying out the HPIB options available to me. Maybe couple of .5 meter straight as well as right angle, couple of 1.0 meter, and a 2 meter would be nice. |
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HPIB Cables................needed
Does anyone have some HPIB cables that need a good home? Not looking for free, but asking here before I go to the bay. Just good ones to start trying out the HPIB options available to me. Maybe couple of .5 meter straight as well as right angle, couple of 1.0 meter, and a 2 meter would be nice.
Cheers |
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Re: HP-6209 Power Supply
Hmmmm.
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Thanks. Dave On 12/18/2012 9:54 AM, David wrote:
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Re: OT AIE FM-110 service monitor manual?
Artekmedia
Chris
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Join and ask over on the Manuals_Exchange group on Yahoo Dave ArtekManuals.com On 12/18/2012 12:51 PM, Chris wrote:
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Dave Henderson Manuals@... www.Artekmanuals.com PO Box 175 Welch,MN 55089 651-269-4265 |
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Re: HP 3478A general questions
Thanks Chuck, I was looking at those a few days ago. Good to hear they are worth obtaining. I don't at all need the accuracy, but it would be nice to have. I tend to take on projects of a widely varying nature. From DC-DC supplies to ORP sensors. The resolution would be nice if nothing else.
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Thanks, Jeff On 12/18/2012 10:52 AM, Chuck Harris wrote:
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Re: Programming ROM
David,
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I know, I was just being snarky because I missed the drop-down window that's actually totally obvious!! Erich --- In hp_agilent_equipment@..., David DiGiacomo wrote:
On Mon, Dec 17, 2012 at 6:03 PM, erich_schlecht wrote: Dang, got caught by the Yahoo reply all bug!!!! It's not a bug, it's the way the list owner has the list configured - so if you don't like it, let him know. |
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Is scope in a HP 1660CS logic analyzer a good scope?
cnc_joker
I have a HP 1660CS family logic analyzer that has the scope option, i.e. the "S" in the model number. It is spec'ed at 1 GSa/s sample rate and 250 MHz bandwidth. Pretty decient performance and adequate to my needs. I also have a LeCroy 9400 spec'ed at 125 MHz but only 40 MSa/s. The LeCroy is a nice scope to use but the low sampling rate has caused me ailising problems.
There are usability issues with the HP. The logic analyzer controls the scope through an on screen menu which is not as nice as the knobs on the LeCroy. However the high sampling rate of the HP should prevent ailising problems. Has anyone used these logic annalyzer scopes for their main scope? I have a Tek 2465B for an analog scope so I only concerned with digital scope issues here. Thanks, Pete. |
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Re: HP 3478A general questions
Hi Jeff,
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I don't know what calibration would cost, but I would think around $140 would be enough for a 3478A... it is so easy to do. One of the world's best bargains in a highly stable, and accurate bench dmm is the HP3456A. It is 6-1/2 digits, and qualifies as a transfer standard for DC. It is AC, DC and Ohms, and has a max voltage of 1KV. Typically they can be found for $100 on the bay, though most of mine have been given to me. Get the newer model that has no fan, but has a visible to3 pack transistor on the back panel. -Chuck Harris Jeff Machesky wrote: Thanks Chuck, sounds like the cal routine is the same as the Tek |
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Re: HP 3478A general questions
Thanks Brooke, that part I'm aware of. I actually made up a spreadsheet that I can plug in rated accuracies and quickly see how many digits I can trust a meter to have absolute accuracy at a given value. It's shown me that you really have to get a meter with incredible accuracy to get in to those lower digits. Sometimes however it's just nice to see the delta of the value vs the absolute value.
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A project on my plate at the moment is a 5.5 amp 0-18 volt linear supply. It drifted from 5.000 volts to 5.001 volts over night. It would have been nice to see a few extra digits to see how it was relating to temperature changes in a more real time fashion. Thanks, Jeff On 12/18/2012 10:23 AM, Brooke Clarke wrote:
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Re: HP 3478A general questions
Hi:
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Be careful to read the specs for the ranges you are interested in. AFAICR the display is showing a digit or two more than the accuracy. Have Fun, Brooke Clarke hp_agilent_equipment@... wrote: HP 3478A general questions |
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Re: HP-6209 Power Supply
--- In hp_agilent_equipment@..., "gleroytirebiter" wrote:
All, There is a broken HP-6209 power supply on ebay. How easy are those to repair? Thanks Dave I've only worked on a couple of these power supplies, and it's been a few years ago. They were fairly simple to diagnose, but fing replacement parts was a problem, since the HP part number cross reference that I have didn't list most of the transistors in the units. I finally had to order the parts from Agilent (what a hassle that was!). One had an open filter cap on one of the supplies, and the other had a shorted pass transistor. Cheers, Dave M |
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Get in the OEM Paper Manual Business
Artekmedia
Ladies & Gentlemen
I have been asked to help liquidate two lots of ( predominately) HP Manuals The first lot is approximately 2000 Manuals of which about ~1500 are HP and the rest a mixture of other manufacturers The second lot is 3000+ Manuals with a few ( maybe a 100) of other manufacturers. This is being handled on a "sealed" email bid basis and all bids need to be received by Midnight USA/CDT Jan 5th. Both Lots are located in the upper midwest USA ( one near Minneapolis and one near Chicago). Please contact me OFF LIST via direct email to manuals@.... for more detailed information. Replies to the list WILL NOT BE ANSWERED Thank you for the bandwidth Happy Holidays Dave ArtekManuals.com -- Dave Henderson Manuals@... www.Artekmanuals.com PO Box 175 Welch,MN 55089 651-269-4265 |
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Re: HP-6209 Power Supply
? There is the drawing in the service manual, straight forward, Just hope it's not the transformer. From: gleroytirebiter <kc0wjn@...> To: hp_agilent_equipment@... Sent: Tuesday, December 18, 2012 10:02 AM Subject: [hp_agilent_equipment] HP-6209 Power Supply All, There is a broken HP-6209 power supply on ebay. How easy are those to repair? Thanks Dave ------------------------------------ Yahoo! Groups Links |
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Re: HP 3478A general questions
Thanks Chuck, sounds like the cal routine is the same as the Tek 2465BDM DMM function which technically is high enough resolution for 99.9% of my needs. I guess I'm just a bit of a stickler for that absolute precision. I have an If I could afford an 8 1/2 digit meter I would get one kind of mentality. Their of course is a practical side that says don't waste a ton of money for an extra digit or two. The 3478A appears to be a good choice.
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What's sending one of these off to get NIST traceable calibrated normally run ? If I were to buy new I was looking at the U3402A. Buying new gives me that nice cal sheet that satisfies my need for accuracy. Whole lot of difference in price however. Thanks, Jeff On 12/18/2012 8:54 AM, Chuck Harris wrote:
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Re: HP 3478A general questions
The 3478A is a nice meter, but bear in mind that it is 300V max.
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It is accurate, stable, and works smoothly. It is easily controlled over HPIB. In its deficiency corner, is the 300V max,and a non back lit LCD that tends to get lost in the shadows. I have never needed to calibrate mine, but I am pretty sure that you need to complete the calibration of all steps before you leave a particular function, say DCV, or ACV, or Ohms.... The calibration procedure takes a measurement of a known standard on a particular range, and creates an offset that it used when it calculates the voltage to display. The 30mv standard only calibrates the offset for the 30mv range. The 3V standard, the 3V range... You shouldn't have to pay more than about $100 for a working calibrated 3478A. Tucker has them for sale periodically. 9 times out of 10, a voltage measured by a scope's trace is good enough. Did I mention that the 3478A only measures up to 300V? -Chuck Harris Jeff Machesky wrote: So it's about the time of year where I'm allowed to buy one piece of |
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Re: HP 3478A general questions
Don Lewis
Joe:?
? What are your thoughts on the HP 745A for AC calibrations.? It has a 1K and a 10K range. ? I have two of them, ...one working, one needs the optical thermistor in the clipper circuit. ? Thanks, ...-Don ? ? ? =============================== ? ? ? ? ? ? ? From: J. L. Joe:Trantham <jltran@...> To: hp_agilent_equipment@... Sent: Tuesday, December 18, 2012 9:30 AM Subject: RE: [hp_agilent_equipment] HP 3478A general questions ? Jeff, I have a 3478A and I have calibrated it by hand but it has been a while. I *think* it is possible to just calibrate one range at a time but I'd have to look at the manual. When I did the calibration, I was trying to 'harvest' the CAL data and lost it so I had to do a complete calibration. For my day to day bench work, I use a Fluke 8050A. They are usually available very cheap and are quite reliable. I have never calibrated one though, even though the process is described in the manual. If you get the 3478A, I would send it out for calibration and make it your 'house transfer standard'. IIRC, though, it's maximum range is 300 Volts so might not be a great meter for 'general purpose' trouble shooting but good around most old HP equipment. For most AC work, the usual frequency used for calibration is 1 KHz, not 60 Hz. You might want to take a look at a Fluke 5100B. Very interesting piece of cal gear. Volts, current, AC and DC, and resistance. Big and heavy though. Good luck and Merry Christmas. Joe -----Original Message----- From: mailto:hp_agilent_equipment%40yahoogroups.com [mailto:mailto:hp_agilent_equipment%40yahoogroups.com] On Behalf Of Jeff Machesky Sent: Tuesday, December 18, 2012 8:25 AM To: mailto:hp_agilent_equipment%40yahoogroups.com Subject: [hp_agilent_equipment] HP 3478A general questions So it's about the time of year where I'm allowed to buy one piece of test gear and I'm thinking I want a bench meter with higher resolution. The best I've got so far is the Tek 2465BDM which has a 20,000 count 0.03% accuracy DMM. It's however a little out of cal and I just don't want to spend the cash to get it back in perfect spec. It's also a bit crazy to have a scope running just to use the DMM. This brings me to the 3478A. While I could technically afford to buy a new 120,000 count DMM I just can't justify the cost for the hobby type work that I do. Plus I love working with the older gear and saving money. Couple quick questions about the 3478A: Can one range be calibrated at a time? This is not highly clear in the service manual. Can I calibrate just the 3V range for example? Are they reliable, or will I have to fix up most of what I would buy on say ebay? The problem I have with the meter on my Tek is that you have to run the entire cal for each measurement type, If you start with DC you have to go all the way up the range from millivolts up to several hundred volts. As we all know it's easy to get a precision calibrated low voltage references such as a DMM check board, it's another thing to get 500 volts or higher reference at the spec of the meter. So is this really a meter to buy if your willing to send it off to be calibrated or have a calibration transfer standard meter that's above the specs of the 3478A? In other words if all you have is just a few standards are you wasting your time? Has anyone had any luck using a precision reference, some precision resistors and an op-amp to generate other reference voltages with any degree of accuracy? Also has anyone found a good source of say 500 volts 60 Hz AC? The right audio amp and a sig gen can get you some of the other odd cal standards. High voltage DC is just so much easier to obtain then a nice high voltage sine wave. Sorry for the random questions, and thanks for any replies. The 54111D is still running great. My thanks again for everyone who helped me fix the ROM's. Jeff [Non-text portions of this message have been removed] [Non-text portions of this message have been removed] |
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