The ARRL Instructor's Manual for Technician and General License Courses -- Now Shipping! -- NOW designed for both Technician and General Class. Includes CD-ROM.

Parallax USB Oscilloscope -- Now Shipping! -- This portable two-channel digital storage oscilloscope is a handy and affordable tool for both hobbyist and student!

The ARRL Instructor's Manual for Technician Class License Courses -- For use with The ARRL Ham Radio License Manual. Includes CD-ROM.

Ham Radio...Planning for the Future 2000 -- Proceedings of The ARRL National Educational Workshop. September 2000.

Understanding Signals -- Now Shipping! -- This Stamps in Class guide shows you how to generate, view and measure a variety of wave forms with the Parallax USB Oscilloscope and BASIC Stamp-controlled circuits.