Here is an amazing and beautiful Matched Pair of 2 Vintage 1950s Goodsell GW-18 OG Williamson Monoblock Tube Amplifiers with Partridge transformers and Genalex KT66s. Consecutive Serial #s 18708 & 18709. Quite possibly the nicest and most beautiful monoblocks I have ever owned. Gorgeous gold hammertone finish with giant Partridge transformers as shown. They come with all vintage tubes including Amperex Bugleboy 12AU7s and Genalex smoked glass KT66s. These have recently been serviced with some new caps and they sound amazing. They are quite large and impressive measuring about 17w x 9h x 11d at 45 lbs each. There is an RCA input jack and volume control on the front as well as an octal plug for a Goodsell preamp. They are voltage selectable from 110-220VAC and use the bulgen style AC plug. There is an additional empty octal tube socket on top for the optional preamp rectifier power supply if a Goodsell preamp is used. Two power cords are included as well as the removed caps from service. This will make a wonderful addition to anyones collection. Money back guarantee you will not be disappointed. Click the Enlarge tab to view all pictures for details. I do not offer Buy-It-Nows and do not end my auctions early. Buyer to pay actual shipping of two packages at 52 lbs. each. (Multiply the ebay shipping calculator times 2)