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Date
Re: HP8412B
Hi Rafael, What you are doing is very nearly what I did for my master's thesis back in the early 1980's. I took an 8410A system, and a bunch of miscellaneous bits of test equipment, synthesizers,
By Chuck Harris · #94416 ·
Re: HP8412B
Hi Chuck, This is a complex issue and will require a lot of effort. Anyway for now I am satisfied with being able to process the images on the PC and print them, save them etc. I am aware that the
By ea7hwx@... · #94415 ·
Re: HP8412B
You are probably aware, but the 8409 ANA system mostly uses the visual indications on its P-M and Polar screens for your amusement. It does not use a storage normalizer. The 8409 ANA system does not
By Chuck Harris · #94414 ·
Re: HP34702A Ohms converter issues
George, you are bringing back some ancient memories!? Way back then I was up in the Farmington/Novi offices (near Detroit, MI) and worked a lot with the automotive companies, before I transferred to
By Daun Yeagley · #94413 ·
Re: Looking for silicone HV potting goop
A lot of potting is done with the same wax material that is used in the medical industry for theraputic things. It melts at a cozy temperature, and is quite flexible. Same sort of stuff used for
By Chuck Harris · #94412 ·
Re: HP34702A Ohms converter issues
Daun, HPIL was also designed to go long lengths for remote operation.? The cable was nothing special, just a two wire parallel cable like zip cord.? If you needed a longer length, you could simply
By [email protected] · #94411 ·
Re: HP34702A Ohms converter issues
HP Interface Loop. A serial implementation of an instrumentation communication system similar to HPIB. it was designed to use programmable calculators or desktop PCs as controllers and didn¡¯t really
By Glen Hoag · #94410 ·
Re: HP34702A Ohms converter issues
Jeff, If the batteries in circuit are reading 3.03v, then they are in good shape yet.? I would expect them to drop to around 2.7 - 2.8v before going belly up.? A new lithium cell unloaded will read
By [email protected] · #94409 ·
Re: HP34702A Ohms converter issues
"Hewlett Packard Interface Loop".? It was a very low power serial interface that formed a loop (all devices in a circular loop).? It was designed for use with battery operated (i.e. low power)
By Daun Yeagley · #94408 ·
Re: HP34702A Ohms converter issues
At 2019-02-15 10:06 AM, Jeff Anderson wrote: Unfortunately, the 3468B instruments have HP-IL ports in lieu of HP-IB. What is HP-IL?
By Steve Hendrix · #94407 ·
Re: HP34702A Ohms converter issues
Jeff, The lithium cells hold voltage up to end of life and then die not gradual.? If you are clever, you can parallel another battery clipped into the circuit to hold the voltage and cal constants
By [email protected] · #94406 ·
Re: HP34702A Ohms converter issues
These look like excellent buys and will take offers: https://www.ebay.com/itm/HP-3478A-multimeter/183547520109?hash=item2abc48e46d:g:ynMAAOSw8Dpb9XMd:rk:27:pf:0
By [email protected] · #94405 ·
Re: HP34702A Ohms converter issues
This last year I checked the RAM-backup batteries on my two 3468B and two 3478A multi-meters.? All were at about 3.03 volts.? Never the less, I and Dick Benson, W1QG, wrote MATLAB scripts to let us
By Jeff Anderson · #94404 ·
Re: HP34702A Ohms converter issues
There are several 3478A meters for sale on EBAY for under $100 including shipping.? It always pays to make an offer even when that option is not stated.? ?The 3478A is identical to the 3468A/B in
By [email protected] · #94403 ·
Re: HP 3478A question...
Thanks, Leo. DC Volts works fine.? But to quote the 3478A manual troubleshooting section (section 7-A-31, DC Current Troubleshooting): "If the DC Volts Function is good, the only components that can
By Jeff Anderson · #94402 ·
Re: Looking for silicone HV potting goop
When I have a very small amount of potting to do, I use Permatex silicone windshield sealant. It is a clear, 1 part RTV that is not acid cure (though there was a time when it was, so use your nose).
By Chuck Harris · #94401 ·
Re: Looking for silicone HV potting goop
You got there before me.?? "Dow Corning Sylguard"? But I forget the actual product number, there are several variants.? "Water clear silicone two part rubber compound".? The annoying thing was
By Dave_G0WBX · #94400 ·
Re: Unleveled E4436B
G'day Colby, Can the Agilent ESG-D3000A be hacked to the E4437 standaed? I understood the ESG-D3000A was equilivant to the E4432 standard. Regards CRO-TEK Sydney, Australia
By doyle.paul48 · #94399 ·
Re: HP8412B
At 2019-02-15 05:18 AM, ea7hwx@... wrote: What happens is that I already have a GPIB to USB converter (I bought the prologix a long time ago). Maybe I have not explained myself correctly (sorry
By Steve Hendrix · #94398 ·
Re: HP34702A Ohms converter issues
Greg, Yes someone did grab the $75 one ;-) All this discussion made me want one. Don't know why but seemed like I needed one. I will report back once it arrives. Dave VE7HR
By Dave Miller · #94397 ·