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Re: Floating Scopes
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
going on up there.
> 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?
> 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 :-)).