MQ-360 vacuum tube set Lux selected product 6550A x 4, 12AU7 x 2, and 6FQ7 x 2 configurations 6550A is made by GE, 1 12AU7 is made in Yugoslavia, the other is a GE black plate specification, and the 6FQ7 all seem to be made by GE, and the printing is peeling due to aging, but it seems that it is an unused item due to tube condition! Both spheres have already been measured with the test machine TV-7 (Kojima Yosuke)
Accessories: original box, warranty card