CCFLs

Every few years the back light of a scope will burn out. This light is a cold cathode fluorescent light or CCFL. The proper CCFLs for the TDS 210 and 2024 (and probably any other one with a similar sized screen) can be ordered from https://www.ccflwarehouse.com/22x12fuspcc.html.

Instructions for installing a replacement light can be found here: https://www.youtube.com/watch?v=_KYNugg-0JI.