Compressed Trace on a Tektronix 465M

Problem Tektronix 465M oscilloscope trace is compressed to the right.  Erratic/non-linear motion at slow speeds and the inability to position trace correctly with horizontal position controls. Discussion Purchased this cold-war-era military-grade oscilloscope from eBay to explore the world of electronics.  It was sold as “working” but quickly exhibited the above problems.  Didn’t expect to have […]