These Amplifiers were part of a tube audio collection and they were working when they were put on the shelf some time ago. Tube Lineup: 4X 6L6 (not included) / 1X 12AX7 / 2X 5U4.The item "Pair of Vintage Baldwin 4 Output Tube Mono Block Amplifiers / 6L6 / 545-22 - KT" is in sale since Monday, March 2, 2020. This item is in the category "Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Amplifiers & Tube Amps". The seller is "speakerguy2002" and is located in Caledonia, Michigan. This item can be shipped worldwide.