You are bidding on an awesome Pair ALTEC A340A 6550/KT88 35 Watts Mono Power Amplifiers in excellent working condition. Exceptional cosmetic condition considering this is over 60 years of age. A340A is ALTEC first 6550/KT88 high power output tube power amplifier also known as the best of the best sounding amount the other vendors. The main reasons are the output and power transformers are made by their subsidary company - PEERLESS and the magnificient workmanship and layout. This amp consists of the following tubes: 1X 12AY7/6207(special 12AY7 come with this amp), 1X 12AU7/ECC82, 2X 6550/KT88, 1X OA3 & 1X 5U4. All tubes tested strong and the 4X 6550 read 81, 74, 72 & 70 (min 44) on my TV-7D/U. This is properly the best sounding 6550 power amp I ever heard. I enjoy listened to them for one whole day and sorry to let them go. Serial No. is 876 & 934. These amps are plug and play, dead quiet with no hum and without any other issues whatsoever and I know you will like it when to see them. All parts/components are original except the 2 filter caps (each amp) have been replaced by 2 high quailty JJ 2X100M 500V (see the last pic). Measured 8-1/4”W X 12-1/2”D X 7"H and weigh 26lbs each after packing. I have quite a few pics showing the overall condition of the amps. Have fun. Buyer pays $20.0 for packing material and handling in addition to the shipping. Thanks for looking, happy bidding and please check out my other auctions.