Tektronix-AFG3021C-25 M Hz-Arbitrary-Function-Generator-Tektronix-AFG3021C-P-The-Tektronix-AFG3021C-is-a-25 M Hz-Single-Channel-Arbitrary-Function-Generator-that-is-unmatched-in-performance-versatility-intuitive-operation-&-affordability-P-P-With-the-AFG3021C-users-can-choose-from-12-different-standard-waveforms-Arbitrary-waveforms-can-be-generated-up-to-128K-in-length-at-high-sampling-rates-On-pulse-waveforms-leading-&-trailing-edge-time-can-be-set-independently-External-signals