Andy, I had a similar issue on a 9010a I picked up several months ago - the key would stick down and not want to come back up, or wouldn’t lock down at all. I unsoldered the switch from the keyboard, at which point it’s not too hard work on. I suspect the little wire piece that flips back and forth got bent, and you’ll need to gently get it bent back into position - not necessarily an easy task. You may need some light lubrication in it as well (I used a bit of silicon spray). If you’re handy with that type of thing, it can definitely be done; I spent about 30 to 45 minutes tweaking mine until I was happy with it. It clicks back and forth consistently about 90% of the time, which was good enough for me, and much better than it was. Either way, these switches aren’t too common, so fixing it is your best shot I suspect - good luck! Regards, Brent Date: Tue, 17 Mar 2015 19:14:25 +1100 From: Andy Smout <andysmout@bigpond.com> To: techtoolslist@flippers.com Subject: [Techtoolslist] Fluke 9020a - need replacement "low pulse" key switch Message-ID: <5507E261.2090100@bigpond.com> Content-Type: text/plain; charset=utf-8; format=flowed hello! I recently bought a Fluke 9020a w ieee-488 interface and the "low pulse" key switch behaves as a momentary sw only whereas the "high pulse" switch is a toggle - PTMK-PTBRK. on reading a post by Martin from 2006 i realised my LOW pulse" sw probably needs replacement. anyone know of a source for the switch mechanism ? anyone repaired or lubricated the switch successfully ? cheers, andy _______________________________________________ Techtoolslist mailing list Techtoolslist@flippers.com https://pairlist7.pair.net/mailman/listinfo/techtoolslist FTP site is: ftp://ttl.arcadetech.org/TTL/Test_Equipment Archive site: http://seven.pairlist.net/pipermail/techtoolslist/