ADCOM'S GFP-565 PREAMPLIFIER, PART 1 (6) This inveterate tweaker shares with us his modifications to a classic preamp. This first part focuses on replacing the power supply.
A SERVO DUAL VOICE COIL SUBWOOFER (18) Here's a closed loop solution to the problem of bass reproduction.
FLARED PORTS (28) Now you can quickly and easily add flared ports - thus reducing noise - to your next speaker design.
AMPLIFIER BURST TESTING (30) Here's a simple circuit to test the short-burst output capability of any solid-state or tube amp.
MORE ON HEATER PROBLEMS, TUBE FLASH, AND ELECTRON EMISSION (34) This tube designer, author, and Western Electric veteran provides a unique inside look at vacuum tube manufacturing.
RESTORATION OF PEAVEY TKO 80 BASS AMP, PART 2 (40) Circuit modifications to this classic bass guitar amp complete this restoration project, resulting in a smooth-sounding unit.
AN UNORTHODOX TWO-WAY, PART 3 (50) In the final step of this 8'' two-way project, the author focuses on crossover construction and evaluation.
DEPARTMENTS
AUDIO NEWS (4) What's new on the audio market.
XPRESS MAIL (62) Readers speak out.
NEW CHIPS ON THE BLOCK (69) AD1959 and Weber Copper Caps.
