For sale: One TANGO M-705 output transformer. This is a highly-regarded model for vacuum tube amplifiers, suitable for DIY amplifiers and the repair/restoration of vintage amplifiers. This item shows signs of use in an actual machine, but it appears to have been stored after removal. There are solder marks on the terminals, but there is no burning, deformation, or significant deterioration, and the exterior and printing are in good condition. There are no stripped screws or major scratches, and it appears to have been handled with care overall. The original box is included. Also included are the characteristic graph and output characteristics data for the M-705. With documentation that allows you to confirm the actual measurement data, you can consider this with confidence, even if you prioritize condition and provenance. This product is now discontinued, so it is difficult to obtain a unit in good condition. If you are looking for a TANGO transformer, how about this opportunity? *Operation has not been confirmed. *Please purchase with the understanding that this is a used, as-is item. *Please check the photos carefully for the condition. *Stored at home. *Cancellations and returns due to your circumstances after purchase are not accepted. *Shipping costs will be charged to the recipient (please understand this to keep the price down). If you have any questions, please feel free to ask [before purchase].