The circuit shown allows the test of common silicon diodes. The characteristic curve of the diodein test is shown by the Multisim Blue Oscilloscope. See that the oscilloscope must be adjusted to the funcion A/B. Transformer is 10:1 meaning a voltage of about 12 V applied to the diode in test. R1 can be chaging according the test current.
To download the simulation files and Netlist - click here (msb0006e.zip)