I am now looking for light bulbs. Unfortunately the only bloody place I can find some is RS an that's £7.63 for a 10 pack. I'm still deciding if this is expensive or not as I only need one of them. I did however shake my head slightly at the £6 or so I spent on a pack of fuses and this is the 4th scope that had a blown HT so far so I did ok out of them. Perhaps I should just buy them.
I did consider an LED replacement but that's not in the spirit of such a stately instrument and also the lighting is less diffused and of lower quality.
Do you happen to remember what RS bulb you got (if you did)? I have the same issue on 2 scopes (465 and 466), and need to replace all the lamps. How did you manage to take the assembly out to change them?
Cheers