Alamo was founded around 1947 by Charles Eilenberg. He started the company Southern Music in San Antonio, Texas, and began making guitars and amplifiers. By 1950, the company was producing instrument cases, tube amplifiers, and lap steel guitars. Alamo continued to produce tube amplifiers throughout the fifties and sixties. In 1970, they stopped producing tube amps and jumped on the solid-state bandwagon. The company produced amps and guitars through the 1970s when the company folded in 1982. There are numerous guitar amplifier models under the Alamo name. Look for more information on Alamo amplifiers in upcoming editions of the Blue Book of Guitar Amplifiers. Source: Michael Wright, Vintage Guitar Magazine and Guitar Stories: Volume Two.
Amplifiers previously produced in San Antonio, Texas. The Alamo trademark was established circa 1947 and lasted to circa 1982.