Sold as 1 bottle of Parathermal Dual Triodes Made in America LOT: 643? (The end is probably 9) Measured value 42 (rejected value 40) There is an adhesive mark at the junction between the base with the original box and the tube, and it is inexpensive because it makes a crackling sound inside the base*The measured value is determined based on the gM value measured by the testing machine TV-7 (Kojima Yosuke)
Accessories: original box