Hameg HM307

[Fungus]

I just got hold of a Hameg HM307 CRO, it's small, it's cute, it looks to be in perfect condition, but it's been sitting in a cupboard for 25 years.

I didn't switch it on yet, I'm worried about the caps inside it being bad.

Question: Could I damage it just by turning it on?


(I've done a bit of research and there's an awful lot of caps in there, replacing them all looks like it would be a lot of work)

[Fungus]

Manual is here: https://cdn.rohde-schwarz.com/hameg-archive/HM307_english.pdf

Here's a guy poking around inside one:

[Grandchuck]

Series line current limiter or a variac for initial test?