Author Topic: Ebay Keithley 237 OUCH OVERFLOW  (Read 2609 times)

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Offline JwallingTopic starter

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Ebay Keithley 237 OUCH OVERFLOW
« on: May 24, 2016, 06:20:25 pm »
This one is rather amusing.
http://www.ebay.com/itm/Keithley-237-High-Voltage-Source-Measure-Unit-/331864041025?hash=item4d44a36641:g:LNMAAOSwzchXRIwK

 1100VDC. I wonder if it means the output is railed, and you will OUCH if you touch it?  :)

No affiliation. Probably a good deal if you can fix it. I don't think the schematics are out there for download, but I did repair one a few years ago with a hard-copy manual that did have them, so they do exist in the wild. IIRC I had to replace all the output FETs (they were all shorted) I managed to light myself up as well while debugging the thing; I swear I heard a train whistling-like noise in my head when it happened. :scared:

Jay
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Offline _Wim_

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Re: Ebay Keithley 237 OUCH OVERFLOW
« Reply #1 on: May 24, 2016, 07:08:14 pm »
 :-DD I think this is OUCH for sure if you touch it...
 

Offline retiredcaps

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Re: Ebay Keithley 237 OUCH OVERFLOW
« Reply #2 on: May 24, 2016, 10:38:47 pm »
 

Offline JwallingTopic starter

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Re: Ebay Keithley 237 OUCH OVERFLOW
« Reply #3 on: May 24, 2016, 10:48:24 pm »
Seen the ouch before on a multimeter.

http://img02.deviantart.net/4c5d/i/2010/040/f/d/multimeter_in_pain_by_rycho.jpg

That's not fair! When did poor little Ohms ever hurt anyone? ???

Jay
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