> "> Just convert the 3 pin wall plug to a 2 pin > >wall plug. (lift the ground pin)" > > We had a young tech who did this to measure > the grid drive to a small TWT (traveling wave > tube) one day (p/o the GM (Ground Mappping) RADAR > in a Panavia Tornado Nose RADAR) - the only problem > was the drive was WRT (with respect to) the cathode > of the TWT - and the cathode sat around -3000 VDC ... > the Tek 475 *did* stand off this voltage (the spec > states something like 500 V or so) ... > > Normally a special isolation transformer and > insulated 'cage' for the scope was used - someone > had not informed this young man as part of his > training however. Presumably this is an ISOxxxx certified facility. ??? :-) Russell McMahon -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body