The HP 8012B is an extremely versatile, easy-to-operate pulse generator with a wide range of applications. It has a complete set of vairable pulse parameters with a reptition rate of 0-50 MHz and transition times as low as 5ns. This makes it ideal for testing digital logic: RTL, DTL, TTL, some ECL, and some MOS can be dynamically tester and noise patterns can be simulated. The 8012B has a selectable source impedance which makes impedance matching to the circuit under test very simple.