Forgive what might be a trivial problem, it's my first time tinkering with electronics.
Background:
I acquired two Tektronix oscilloscopes from an old lab, 760 & 1781R.
What happened:
After powering them on they both had a capacitor blow after about 10 seconds.
Both fuses are OK.
Pics attached.
Questions:
Is it something I did!?
When capacitors are left to sit for decades, is this just something that can happen?
Are these capacitors in particular known to be a common failure point?
When I try to replace them, are there any other capacitors I should replace preemptively?
Any other recommendations for how I should care for an oscilloscope that hasn't been powered on in 20 years?
Tektronix part number: 285–1222–00
Description: CAP,FXD,PLSTC:0.068UF,20%,250V
It also has 565-1 & LD2 & 40/085/56 written on it.
cheers