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HAMM, R. O. Tubes versus transistors: Is there an audible difference? Journal of the Audio Engineering Society (September 1972).

THE INSTITUTE OF HIGH FIDELITY, INC. IHF Standard Methods of Measurement for Audio Amplifiers, ihf-a-202 ed. 489 Fifth Avenue, New York, NY 10017, 1978.

Mike Andrews
Tue Mar 25 01:37:10 EST 1997