JJ ELECTRONIC vacuum tubes made in Slovakia, for guitar and bass amplifiers, imported from overseas, JJECC99, 1 piece. - Brand: JJ ELECTRONIC - Product Name: Vacuum Tube - Country of Manufacture: Slovakia Thank you for viewing. I needed two, but I accidentally only bought one, so I'm putting it up for sale. Prices vary depending on the shop, and I purchased it for 16,680 yen. For those who need one, please consider it.