106
The Tektronix Type 106 is a pulse generator introduced in 1966. It has a 500mV 1ns-risetime 50-ohm output and a 12V 12ns-risetime 600-ohm output. The 1ns-risetime output is generated using diodes to clip a high amplitude signal. In units with serial numbers less than 1190, GaAs diodes were used for clipping. After serial number 1190, silicon diodes were used.
