| Products > Test Equipment |
| Some old school instruments showing how it's done (HP 3325A and Fluke 8506a) |
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| SilverSolder:
--- Quote from: garrettm on January 31, 2021, 03:01:45 am ---[...] The diagrams are errata notes tacked on at the end of the manual. --- End quote --- The errata are missing from the Artek 8506A manual, which also happens to be from 1988, so a few years older. Hopefully no major changes in the Thermal RMS part in that time... |
| SilverSolder:
Just for fun, here is some price information for these units, and the options! Don't forget to multiply prices by 1.79 to adjust for inflation until today! |
| bdunham7:
--- Quote from: SilverSolder on January 31, 2021, 04:16:35 am ---Just for fun, here is some price information for these units, and the options! Don't forget to multiply prices by 1.79 to adjust for inflation until today! --- End quote --- While I'm glad to have found one to play with for $50, I can't imagine buying one in 1993 for more than an HP 3458A, once you factor in the appropriate options. |
| garrettm:
I'm pretty sure the 8506A and 8505A were on some sort of weird military contract. Otherwise it wouldn't have made sense to continue manufacturing these units all the way up to 1993--where they were long obsolete. The unit I currently have came from the US Air Force, and the CT variant I had before it was also surplus Air Force gear. Prior to the release of the HP 3458A, the 8506A wasn't a bad metrology grade meter. Though there were still arguably better meters from Solartron at the time. And while HP's 3456A had better DC volts spec below 100V as well as more comprehensive math functions, the 8506A's AC volts spec was pretty impressive for a 6.5 digit meter. |
| joeqsmith:
--- Quote from: garrettm on January 31, 2021, 03:34:33 am --- --- Quote from: joeqsmith on January 31, 2021, 02:52:03 am ---I would like to see the signal conditioner inside of yours. Guessing it's a fair bit different than the one shown on the XDEV site. I only opened the ADC and ohms clam shells. Which interface is your meter using? I use LabView. --- End quote --- Looking back at the photos of your unit, someone has replaced your DC Signal Conditioner with a newer module. The older modules used two metal stickers while later units switched to a single plastic sticker and molding the warning text into the lid. What number does your module show on the label (I can't see it in the photo)? I have the standard IEEE488 interface on mine and a GPIB to USB adapter floating around somewhere that I need to find... --- End quote --- 881722 with a blue dot next to it. You may also notice that many of the guides have been replaced as well. There are at least three different colored rails used. Guessing it was maintained by Fluke and the upgraded plugin was part of their service. |
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