The 371B Programmable High Power Curve Tracer provides both high current and high voltage for testing high-power semiconductor devices at user-selected power settings. It can test devices at up to 400 amps at power levels up to 3000 watts. By measuring and displaying the characteristics on a CRT screen, the 371B enables a user to analyze and evaluate the static characteristics of semiconductor devices. Non-volatile memory (RAM) and floppy disk storage enable you to store frequently used test setups and curve characteristics for quick and easy measurement comparisons. Using memory in this way helps you avoid errors associated with manual testing, and allows you to run more repetitive-type tests in any given period. You can store up to 64 characteristic curves and 64 setups on a floppy disk, and up to 16 characteristic curves and 16 setups in non-volatile memory. Stored characteristic curves and setups can be recalled for additional analysis and comparison. The 371B provides direct readout on the CRT of offset base/gate voltage or current. The 371B calculates these values for you, unlike earlier curve tracers where these functions had to be calculated manually. The 371B also has the ability to average readings to reduce the effects of random noise, which can obscure actual curve data. The rear panel contains a GPIB connector. The GPIB connector is for use by a GPIB-compatible controller or other GPIB instrumentation. Using this connector and appropriate GPIB instruments, you can create and control tests to suit your application. A typical GPIB system will include a controller and one or more instruments, such as the 371B, a signal generator, a digital multimeter, and a digital oscilloscope. Some GPIB instruments are talk only or listen only devices while others can both talk and listen. The 371B does both. Linking a controller to the 371B, and possibly other instruments, provides operation in four major task areas: Program development System control Data processing Display and storage