![](https://cdn.shopify.com/s/files/1/0672/2283/1394/files/the-tube-amp-book-arts.jpg)
Art Dudley's personal, well-worn copy of The Tube Amp Book, Volume 3 by Aspen Pittman, 1991. The page with the schematic for the Fender Bassman Model 5F6-A (introduced in 1958 and considered by many to be the ultimate guitar amp) is bookmarked.
![](https://cdn.shopify.com/s/files/1/0672/2283/1394/files/andy-warhol-pioneer-ad-1975.jpg)
Blurring the line between art and commerce: Andy Warhol shilling for Pioneer in 1975.
![](https://cdn.shopify.com/s/files/1/0672/2283/1394/files/mcintosh-c8.jpeg)
A magnificent McIntosh C8 monaural preamplifier, circa 1955-1959. List price $88.50! Photo by Howard Kneller, courtesy of The Audio Classics Collection.
![](https://cdn.shopify.com/s/files/1/0672/2283/1394/files/1950s-general-electric-portable-radio-advertising-1441-700x700-1.jpg)
Whoever signed off on this 1950s General Electric ad didn't lead a double life as a copy editor. Very cool radios, though!