2252
The Tektronix 2252 is a 100MHz four channel* analog oscilloscope, with a built-in 200MHz counter/timer. It differs from the 2247 in that the counter/timer and oscilloscope setup can be fully controlled by GPIB. It's part of a nearly identical family consisting of the 2245, 2246, 2247, and 2252.
Two channels are fully-functioned, and two are very limited, in both deflection factor and coupling.