Re: Floating Scopes

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>" <dhmccauley-at-spacecatlighting-dot-com>

I personally wouldn't try.  Sure, if it was only 40-60kVDC or something it
would definitely be okay.  But the tesla coil is going to have all kinds of
things
going on up there.

Dan




 > Hi All,
 >
 > I just bought a cute little Tektronix model 321 scope.  It is rated to
 > only 5 MHz, but that's OK, since it's battery powered, and was built
 > before 1963 :-)).  It's all solid state, too (not sure if that's good or
 > bad, yet).
 >
 > Anyway, I was wondering if I could stick this thing on the inside of my
 > toroid for making topload current measurements, without letting out its
 > smoke.  I'd then view the screen from the coil's controls via binoculars
 > ;-)).  My gut says "no", since the scope's components use the case as a
 > ground, and RF might make things a bit messy.  Comments???  I know I
 > could float it at a high DC potential, but I'm not sure about RF.
 >
 > At any rate, I'm glad that I don't need to haul my Tek 545 outside
 > anymore, unless I need to make high frequency measurements ;-)).  Also,
 > did Tektronix make any battery powered tube scopes?
 >
 > Thanks,
 > Winston K.
 >
 > PS-I got the thing for $50, because there was something wrong with it.
 > When I took the case off, the "problem" was that both of the horizontal
 > plate connections to the CRT had been disconnected!  I put them back,
 > and all was well :-)).
 >
 >
 >
 >