Velleman DCA55 - Manual (Page 2)

Atlas DCA User Guide October 2007 – Rev 7
Page 2
Want to use it now?
We understand that you want to use your Atlas DCA right now. The
unit is ready to go and you should have little need to refer to this user
guide, but please make sure that you do at least take a look at the
notices on page 4!
Contents Page
Introduction....................................................................................3
Important Considerations ...............................................................4
Analysing semiconductors .............................................................5
Diodes......................................................................................7
Diode Networks .......................................................................8
LEDs........................................................................................9
Bicolour LEDs .......................................................................10
Bipolar Junction Transistors (BJTs).......................................11
Enhancement Mode MOSFETs .............................................18
Depletion Mode MOSFETs ...................................................19
Junction FETs (JFETs) ..........................................................20
Thyristors (SCRs) and Triacs.................................................21
Taking care of your Atlas DCA....................................................22
Battery replacement ...............................................................22
Self Tests ...............................................................................23
Appendix A - Technical Specifications........................................24
Appendix B - Warranty Information ............................................25
Appendix C - Disposal information .............................................26