Phosphor

The CRT in Tektronix oscilloscopes often had a standard phosphor based on the intended application of the instrument. On request, other phosphors were available. The phosphor affects:

• trace color
• maximum trace brightness
• trace width
• persistence time
• writing rate
• resistance to burns

Further reading:

• http://www.bunkerofdoom.com/tubes/crt/crt_phosphor_research.pdf

• 

  Table of Standard Phosphors