TRAINING PRODUCTS Electronics / Physics Training Software CRO TUTOR and TRAVELLING WAVES These two software applications run under Windows on a 386 or 486 machine. They are well designed, easy to use and provide students with excellent graphical simulations and animations. The cost is very reasonable. CRO TUTOR 2 simulates a single channel Cathode Ray Oscilloscope with a colourful, uncluttered display. Timebase, Horizontal Shift and Level controls are displayed on-screen and may be adjusted with mouse clicks on Option (Radio) buttons and Slider bars. The more complicated controls such as coupling and trigger level are added onto the screen in three stages so as not to overwhelm the student initially. Sinewaves of various amplitudes and periods are generated and the student can request to be shown the values of these parameters. When ready, the student can opt for a test in which five random sinewaves are displayed in succession. The controls must be correctly adjusted and the waveform's parameters measured accurately in order to pass the test. The passmark is set at 80%. The screen can be printed or copied to the clipboard at any time. Initial reactions from students have been very favourable. It's an excellent introduction to a CRO and is very reasonably priced for a quality product. Every electronics lab should have CRO TUTOR. RRP : AUS$ 25 per installation (US$ 20) TRAVELLING WAVES displays moving pulses and transverse waves ( sine, square ) which can be made to reflect at a boundary. It has relevance to the electronics and physics disciplines. It may be used by a teacher for class demonstrations or it can be investigated by students following a self-paced tutorial guide. Forward, reflected and resultant waves can be shown individually or in any combination . Standing waves are quite impressively displayed. The animation can be slowed or paused at any time and the waveforms printed or copied to the clipboard. Various parameters such as frequency, reflection coefficient, attenuation, animation speed and detail are adjusted by on-screen option buttons and slider bars. The tutorial notes are thorough and clearly laid out, the display is colourful and the animation is smooth on a 486 machine. RRP: AUS$30 per installation. (US$25) Contact : Barrenger Software 7 King St. Sandy Bay TAS 7005 ph/fax : (002) 232 707 email : acbarren@ozemail.com.au