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serving problems. Find out how electronics will make this possible—in this broad survey of extensive research and survey work now going on.

Simplified Speaker Testing — Here’s a technique that every audiophile can apply in his own home —using just an oscilloscope and audio oscillator to measure loud-speaker impedance, phase angle, and distortion.

New Look in Printed Boards — Complete rundown of recent changes in printed wiring boards — includmg use of new materials to improve reliability — “one side only” wiring, road map technigues — and much morę!

These November Electronics World features are typical of the coverage you’ll enjoy month after month in the world’s most authoritative electronics magazine. Be surę of getting your copy every month by subscribing now.