Sampling oscilloscope for millimicrosecond pulses at a 30-Mc repetition rate

A sampling oscilloscope with a rise time of 3×10-10 sec is described. It may be used with carrier or noncarrier periodic signals having a high fixed repetition rate. A novel coincidence circuit employed in the device for displaying the envelope of 1-mμsec bursts of 10-kMc energy is also presented. © 1960 The American Institute of Physics.