Tektronix tdp1000 1ghz high voltage differential probe tektronix tdp1000 p the tektronix tdp1000 is a high voltage differential probe the probe has been specifically designed for use with and direct connection to tektronix oscilloscopes with either the tekvpi 8482 probe interface or tekprobe bnc interface p p this probe achieves high speed signal acquisition and measurement fidelity by solving three traditional measurement challenges p ol li outstanding electrical performance