Eico 460 Oscilloscope

[darklife]

Anyone here own one of these oldies?

Got mine a few years back for 20 bucks and it has worked great until one of the HV capacitors for the CRT died. After replacing it all was good for a while.
Tonight same thing happened again. Using it for a good hour and suddenly buzzzz snap and there goes the fuse.
Opened it up and sure enough the other capacitor out of the two for the 1500v supply went.

So I got to thinking what could possibly be taking these caps out? After a bit of research I found that they were installed backwards since the day I got it!
Even though they are .1uf 1600v caps the fact that their polarity was reversed must have been what made them go?
They had both of neg. of caps going to chassis and positive to the HV tube. I did a quick power up HV check using a multimeter and sure enough they were suppose to be installed the other way around with pos. going to chassis and neg. going to the HV tube.

Do you think this may be why the capacitors died?
Also the power transformer in this gets very hot. I read in a few other places that it's common for the transformer to burn up in time. Any way to prevent this? The manual says 115v operation, my wall is around 125. Maybe that's why the transformer gets hot

This is such an old scope but I like it for the simplicity. Hope to do a full recap and check for aged resistors when I get the time. As of now it's working "okay".