This listing is for a Pair of Harman Kardon 6550/KT88 Integrated Tube Amplifiers made for Schulmerich Carrilons Inc. by Harman Kardon. The amplifiers are in working condition and were originally designed to use 8417 as output tubes but were modified to run on 6550/KT88 tubes. The amplifiers do have bias adjustment. The amplifiers have a few different application that can be added to them with extra tubes and modules as can bee seen in the pictures.  The cosmetics of the amplifiers are pretty nice for their age and application and can be seen in the many pictures.

Due to age the amplifiers are Being Sold AS IS.

Disclaimer: When buying almost 50 and 50 plus year old electronic equipment that has not had all parts replaced with new parts there is always the possibility with failure to the 50 year old part/s at any time. Some of the electronic part/s may continue for another 50 years without need of replacement and some electronic part/s may fail a few days after you start using the item. The item will arrive to you in the working condition as described in the listing but I am not responsible for what might happen to the electronics part/s after the item is received in working order due to the age of the electronic part/s.

The buyer pays for shipping and handling/packing, there is a small international paperwork preparation fee of $25 for each package being shipped outside of the USA.