BUILD A PLASMA TWEETER (4) Here's a hot idea - ion tweeters you can build to reproduce high-frequency sound that's clean, clear, and totally non-directional.
CAPACITOR ESR TESTER - THE GOOD, THE BAD, AND THE LEAKY... (14) Build this handy test unit to measure and track down faulty capacitors.
A HYBRID STEREO $90 CONTROL (22) With its low cost and simple circuit architecture, this high-quality control unit is one you can easily add to your audio system.
A 6AS7/6080 CIRCLOTRON AMP (32) Check out this affordable, relatively easy to assemble project that's a good introduction to circlotron amp design.
MAKE A PANEL-CUTTING JIG (38) Can your table saw cut it? Discover how this jig can make your next speaker-building project a breeze.
REVIEWS
BUDGET PHONO PREAMPS (40) Here's a survey of some low-cost phono preamps. Find out which one is right for you.
LISTENING CRITIQUE (52)
TESTING THE SEAS FROY MK3 (57) How does this updated Froy kit, featuring high-quality SEAS drivers rate? Our audio experts put this design through its paces.
LISTENING CRITIQUE (58)
DEPARTMENTS
XPRESS MAIL (62) Readers speak out.
BOOK REVIEW (67) Master Handbook of Acoustics.
AUDIO AID (69) A 1cent Diffraction Detector. Current-Regulated Heater Supplies.
IN EVERY ISSUE
CLASSFIEDS (70) Audio-related items for sale or wanted.