Mobirise Website Builder


Download free trials below. Unlimited site licenses are only $229.00 per program title for Windows 7, 8, and 10. Schools/Colleges can take a 15% discount using the code STE362. That is only $195.65 per program! The unlimited site license allows any number of program copies to be used at the site. PLUS the site has the option to allow students and faculty to use the software on home and laptop computers. Purchase via credit card or via purchase order. Order by program title. Send your purchase orders to:

ETCAI Products
P.O.BOX 1347
Collierville, TN 38027

Challenges for Electricity

DC Circuits Challenge

AC Circuits Challenge

Digital Challenge

Transistor Challenge

Op Amp Challenge

Ohmmeter Challenge

Voltmeter Challenge

Power Supply Challenge

Trigonometry Challenge

Use on overhead projector to show troubleshooting logic.

Students can work together to learn analysis methods.