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First off, I'd like to extend my appreciation to the very talented Rich Wahlez for his input on graphic design and layout of this CD-ROM.

One of the most difficult aspects of putting this project together was sourcing high-quality images of classic amplifiers. I would like to thank Barry Nachman for his generous supply of digital pictures from his wonderful collection of classic U.S. hi-fi equipment. Special thanks must also go to Alex Rubli for his contribution of a significant number of the schematic diagrams and manuals that appear on this CD.

Many others generously provided pictures, original material, advice and information during the compilation of this CD-ROM. I would like to thank all of the following:

Kate Andrews-Day, Colin Braddock, Brian DelMastro, Steve Duckworth, Matt Hardy, Maria Inglis, Barry Jones, Geoff Kremer, Cal McCormick, Mark Malkin, Chong Ong, Stuart Perry, Rick Phillips, Kevin Prendergast, Keith Snook, Paul Stephenson, George West, Edward Widdowson and all of the anonymous eBay sellers who kindly gave me permission to use their auction pictures.

Other Resources:
Allied Radio 1950 - 1967, Assorted catalogues Allied Radio Chicago Ill
Armstrong Audio - The High Fidelity Sound
2005, [online]. Available at
Attwood, D 2002, Sound Design - Classic Audio & Hi-Fi Design Octopus Publishing Group, London
AudioWeb - The Audio Equipment Authority 2005, [online]. Available at 2006, [online]. Available at
Dunne, G 2002 Greg's Unofficial Dynaco Home page [online]. Available at:
Harman Kardon Industries 2006, Product History [online]. Available at:
James, B 1956, Hi-Fi For Pleasure - A guide to equipment Phoenix House Ltd, London
Higgins, B 2005, The EICO page [online]. Available at
Hill, J 1995, Audio! Audio!  Sunrise Press, Devon
Lafayette Radio Electronics 1955 - 1966, Assorted catalogues Lafayette Radio Electronics, New York
Lesurf, J 2005, Armstrong - the high fidelity sound [online]. Available at:
QUAD World 2001, [online]. Available at:
Radio Shack Corporation 1955 - 1961, Assorted catalogues Radio Shack Corporation Boston Mass.
Russell, R 2006, Roger Russell's McIntosh History Page [online]. Available at:
Shuster, L K 2004, Vintage HHScott Hi-Fi Stereo Archive [online]. Available at:
The Free Information Society 2006, 'Audio Electronic Circuit Schematics' [online].
Wikipedia - The Free Encyclopedia 2006, [online]. Available at: