Dual Beam Oscilloscope.

Type 502 Dual Beam Oscilloscope

The Tektronix 502 is a dual-beam oscilloscope introduced in 1958. The Tektronix Type 502 Oscilloscope provides linear dual-beam displays with a wide range of sweep rotes combined with high input sensitivity. In addition, the Type 502 may be used to provide dual-beam X-Y displays at medium sensitivities, and single-beam X-Y displays at high sensitivities. Vertical amplifiers for both beams may be operated with single-ended inputs for conventional operation, or with differential inputs for cancellation of commonmode signals. The Cathode Ray Tube uses a P2 phosphor. The design was transitional in that it uses both transistors (in the power suppy section) and valves (tubes) everywhere else.
The wide range of operational modes available, made the Type 502 adaptable to a great many industrial and scientific applications and it was a good general purpose ‘workhorse’ in the Engineering Labs well into the 70’s. The Oscilloscope and its mounting Trolley were found at Rochester and were on the books of the Inertial Navigation Division; it is in full working order still.