Agilent 85140-60001 Precision Short
Tektronix TDS3GM RS/232 GP-IB Interfaces for TDS3xxx series
Tektronix TDS3GV Module for TDS3000 series Oscilloscopes, GPIB, RS-232, VGA
Tektronix P6243 1GHz 10X Active Probe
Agilent 909D Coaxial Termination DC to 26.5 GHz, SMA(m), opt 040