Equipment/PM3365A
From London Hackspace Wiki
The PM3365A is an early digital scope, essentially an analog scope with a digital capture/storage unit - so the sampling is rather slow and digital features are not as fancy as today's designs. It also uses numerical 'dials' for most of the standard knobs, making it a bit unintuitive for someone used to a traditional analog scope (and hard to read the settings, as the LCDs are not lit).
Analog bandwidth is 100MHz, but sampling speed is only 100M s/s giving a useful one-shot bandwidth of only about 10 - 20MHz.
Some hints for use may be found in the Reference manual (pdf) - a peculiar halfway stage between user and service manual, or the Service manual. I haven't found an online copy of the user manual yet.