HP 1820C

The 1820C Timebase Plug-In is for use in the 180 Oscilloscope Mainframe. 0.05 µs/div to 1 s/div (23 positions) in 1, 2, 5, sequence, ±3%. Vernier is continuously variable between ranges, extends slowest sweep to at least 2.5 S/div. External triggering: DC to 50MHz on signals 50 mV p-p or more, to 100 mV at 100MHz and 150 mV at 150MHz.