Vintage AmplifierCollectors archive

Grommes Little Jewel Hi-Fi Tube Amplifier

Grommes-Precision First posted January 2012

Archived listing from the original vintage-amplifier.com. Prices, seller details and purchase links have been removed; this page is a reference record, and nothing here is for sale. About this archive.

Grommes Little Jewel Tube Amp
Grommes Little Jewel Tube Amp
From the original site

Grommes Little Jewel audiophile mono tube amplifier, very clean with only minor signs of use. All controls and tubes working, very nice original golden front plate and original knobs. Two main tubes are : RCA Radiotron Electron 6V6 GTA Made in USA. Bottom plate with 4 felt pads, has some sticker glue residue. Please, see actual pictures. Very rare in this original, working condition.

Added in 2026

About this model

The Little Jewel was Grommes' entry-level amplifier, sold in several versions through the 1950s and early 1960s and famous as a first kit for many hobbyists. This mono example had its original gold front plate and knobs, worked on all controls, and used a pair of RCA 6V6GTA output tubes.

Two 6V6s in push-pull suggest an output in the region of 10 to 14 watts, consistent with the 10-watt rating the Grommes company history gives for its Little Jewel and Little Genie kits. The listing does not say which Little Jewel model number this is; Radiomuseum lists several, so check the chassis plate.

At a glance
MakerGrommes-Precision Electronics, Illinois, USA
LineLittle Jewel
TypeMono integrated amplifier
Output tubes2 × RCA 6V6GTA (listing)
FaceplateOriginal gold plate and knobs (listing)

Questions collectors ask

How powerful is a Grommes Little Jewel?

The Grommes company history quoted on the original site describes the Little Jewel and Little Genie kits as 10-watt amplifiers. Individual models varied.

What output tubes does the Little Jewel use?

This archived example used two RCA 6V6GTA tubes. Check the specific model, since the line went through several versions.

Sources: Radiomuseum: Grommes models; Wikipedia: 6V6.

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