His radio repair shop prospered in the 1950s, and a department was formed dedicated to the development of amplifiers and loudspeakers.

[12] Schaller also created many of its own products, including a novel, double-locking tremolo system designed in 1977 by Floyd D.

[13] The company ceased production of loudspeakers, amplifiers and reverb units at the beginning of the 1980s and focused on producing metal components for guitars.

In 1981, Schaller designed and patented a locking device[14] which provided secure connection of strap to guitar.

Violin accessories and spinning machines for strings and ball ends were added, but the newly introduced products did not achieve the same success as the guitar components.