If the photograph is clicked, it grows.

Tektronix TG501 Time Marker SOLD OUT　sold	os2013

"5s-1ns(0.2Hz-1GHz) 1,2,5step Amplitude >1Vp-p 5ns,2ns 750mV 1ns 200mV Trigger out 100ns-5s Timebase5MHz 5*10E-9/month Error+-7.5%"