zoomx:
uA741 is very old maybe in 1985 you used it !
yeah more than likely 
it was lab equipment, bright orange metal case, 10in x 5in x 5in triangular, with the circuit diagram on the front, and this tiny DIL IC plugged into a socket and those huge jump-leads so we could do experiments in the lab plugging in wires instead of burning ourselves with soldering irons.
.... then in the corridor was VICTORIAN era equipment! stuff that went round in sunlight, a tube that lit up when you connected it to a van-der-graaf generator (yeah we had one of those - it was hilarious when it zapped our teacher in the head with a metre-long spark after he left it running for too long...), and a wheel made of two counter-rotating bits of plastic with metal strips on the outside that is only really now known by "conspiracy-level" theorists for generating electricity... but we actually had one in the lab. stonyhurst college is really... old. they also had (have?) one of the UK's longest-running active volunteer earth's magnetic field measurement sensors, providing information to the MET office on a weekly basis. amazing place. i was very lucky.