The 222 (A) stereo integrated amplifier first appeared in 1959 and was a cheaper version of the more powerful model 299. The self-biasing 6BQ5's put out 13-watts RMS per channel. By 1960 it had been replaced by the 222-B which now featured tape monitoring, DC balance, optional turned brass knobs($4.95) in place of the 222-A's brown plastic ones and common-channel adjustable bias pots.

The 222-C was introduced in 1961 with increased output power (24 watts per channel) thanks to the introduction of 7189 output valves. By this time the model had become one of America's most successful and popular integrated amplifiers due in no small part to its reasonable price ($149.50 without case), medium power output and reliability, helped by its extra-large transformers and conservatively rated output power. The brass knobs had now become a standard feature and a stereo headphone jack was added to the front panel. A kit version was also available for the enthusiast, designated LK-48 and priced at $119.95 (without case)

The 222-C was superceded by the 222-D in 1963.

Today's value is in the range of $200 (scruffy but complete and working) to $600 (restored, fully working and nicely presented). Typical price for a single-owner, unrestored but working unit is around $350. Due to the hit or miss quality of build by a 'Do-It-Yourself' enthusiast, assembled and used LK-48 kit versions are worth about half as much as a 222-C, although an unassembled (never used) kit may be worth $1000 or more.

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