151-1011-01

Tektronix part number 151-1011-01 is dual N-channel JFET. It is used as the front-end high-impedance buffer in the latest versions of the 321A. The 151-1011-01 is also used in the 7B50 in serial numbers B010100 to B039999, and in the 7B51 in serial numbers B010100 to B039999.