Pignose

[2][dead link‍] The inventors gave 65 prototypes (with rubber volume knobs shaped like the end of a pig's nose) to some of the most famous musicians of the era, including Led Zeppelin, The Rolling Stones, The Beatles, The Eagles, and The Who.

They introduced their product (designed and patented by Wayne Kimbell and Richard Edlund) to the music industry at the 1973 Summer NAMM show, with tongue-in-cheek hyperbole, as the "Legendary" Pignose Amplifier.

The 7-100 includes hanger buttons for a guitar strap, allowing a musician to carry the amplifier while standing or walking.

[1] A feature for the more serious musician is the preamplifier output jack on the rear, allowing it to be connected to a larger amplifier for use as a guitar distortion effect.

[3] In addition to the 7-100, the company offers two battery-powered portable models called "Hog" that use integral rechargeable batteries, as well as small solid-state amplifiers.