
1) Guitar amplifier manufacturer
Found on
https://www.crosswordclues.com/clue/valco

Valco was a manufacturer of guitars, guitar amplifiers, and other musical instruments from the 1940s through 1968. == History == In the 1930s, Valco was formed by three business partners and former owners of the National Dobro Company; Victor Smith, Al Frost, and Louis Dopyera. The company name was a combination of the three partner`s first initi....
Found on
http://en.wikipedia.org/wiki/Valco
No exact match found.