Today i was tweaking the the HV poistive to both CRTs as i found the trio scope crt which is now the FSS CRT needs a lot less voltage here than the old 3BP1 nearly half seems happy at 250 or so where as the 3bp1 around 350 to 400 ..bit of trial and error to get the best out of both at the same time with the same power supply that's more tricky but working out ok .
Any case getting there ...
Yes a nice Scope Steve 400ish bucks not to bad i could of asked for a better brand scope but i was not paying for it so had to take that factor into account ! i also didn't know i also got a 4k tv and new laptop ...
Yes i was wondering if you used your scope with your work ..with all the moving about and on the job it has done well !
Yes also on the problem if they brake apart from may be the power supply it would be hopeless to get it fixed so you really need to get a few years out them ...i have on my tiny slab phone size like scope 1 MHZ that seems to have lasted well ...i will find out if they make them better now that the old days if i live long enough the last crt scope lasted 30 years till we know what happened !
OH BTW i looked at the transformer ! why it was smoking had pretty low ohms on the primary winding i noticed it has a thermal fuse it was not open but i was wondering if they open and reset with heat reason the scope didn't work one day and did the next ..rewound the primary hoping it was that ..but no the primary seems ok now but it must of been the secondary more of a pain to rewind so i put that idea away for another day if it ever comes !
The electromagnetic spectrum has no theoretical limit at either end. If all the mass/energy in the Universe is considered a 'limit', then that would be the only real theoretical limit to the maximum frequency attainable.