Up for sale is a 1959/60 Tube Stereo Integrated Amplifier The Harman-Kardon Trio, Model A-224, serves - as its name indicates - in three roles. First, it is a complete stereo amplifier system with 12 watts of audio in each channel; second, it is a monophonic amplifier with 24 watts of audio (leaving the preamplifiers and tone-control stages unused); and third, it is a conversion amplifier which can serve as the input section of a stereophonic system and one of the two output amplifiers - one which provides 24 watts of power - with the other being one already in the user's monophonic system. Comes with unnamed tubes and 12ax7’s seems to be new production 2 El84 are j&j the other 2 don’t know, the 12au7 is vintage only the 5ar4 rectifier is missing. I bought it as is for restoration but all estimates are out of my possibilities. There is a restore package in eBay but very expensive. For parts. Sold strictly as-is. No returns. Please see photo's for personal evaluation and specifics. NO COVER. Only the bottom shield. Free shipping included.