Grommes-Precision

Grommes-Precision Electronics was founded in Chicago in March 1946 by William "Bill" Grommes, according to the company's own history, which the original site quoted. It began by making signal tracers for radio servicing, then moved into consumer hi-fi under chief engineer Al Hart, starting with mono power amplifiers and adding preamplifiers, integrated amplifiers, stereo amplifiers and tuners. In 1952 it moved to Franklin Park, Illinois.

Its best-remembered products were small: the Little Jewel and Little Genie amplifiers, sold as build-it-yourself kits with full-colour instructions and enough parts for a 10-watt amplifier. Radiomuseum lists several Little Jewel versions, and the company's history claims that many audio engineers caught the bug building one. A SoundStage! review of a later Grommes product says the company returned to high-end audio in 2002.

The archive has a Little Jewel, a G-50 power amplifier with 6550 output tubes and a new-in-box S-20, along with the company history page.