Hello- For sale are 2 of the Swedish made LABE dual tube 1296 Mhz. amplifiers. These are the brass square cavities that use 2 of the Eimac 7289 type tubes.These are just the cavity itself, no tubes, blower , bias or filament supply. These cavities have seen little use and are in nice shape.Price is 175.00 each. Thank you, Byron WA5THJ.