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Keithley 197A owners' corner

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rikkitikkitavi:
Rack 'em and stack 'em...

None of them have been close to a calibration since at least 10 years back, probably since the early 21ths century :)

rastro:
That's quite a lovely site...   :)

Cerebus:

--- Quote from: rastro on December 01, 2019, 02:27:19 pm ---That's quite a lovely site...   :)

--- End quote ---

Do you mean "site" (as in location, perhaps a place to sit) or "sight" (as in vision, a nice thing to see). Either could be true in this context.

My "calibrated god knows when" 197 is in digit by digit agreement on all ranges with my (6 1/2 digit) HP34461A which is relatively recently calibrated (2015 or 2016 if memory serves, specified 10V basic accuracy for 24hrs, 90 days, 1 yr and 2 yrs,  respectively 15ppm, 20ppm, 35ppm and 50ppm). Always a comforting thing to see.

rastro:
yes  8)

Zachrey:
Please help!

I just got a Keithley 197A from a seller on eBay.com and it is clearly defective! The seller will not take a return so I may have to try and fix this bugger! I have a little bit of experience with this and only have an oscilloscope and a multimeter to work with. Here is a Youtube video of what the unit is doing. Do you think there is any hope?

https://youtu.be/6OrLtb9O-co

Thanks!
Zac


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