Tektronix developed a significant amount of technology for its products. Some was limited internally and others were offered for sale. These are some of the internal technologies developed.
CRT Articles and Information Index to numerous papers and website pages
MO18 Miller Integrator IC Prototype
Russian 31LN4 Direct View Storage Tube A clone of Tektronix technology
The Phantastron A highly linear ramp circuit capable of very long delays used in Tektronix products