Svetlana SV572-10
See matched version: https://shop.ehx.com/item/SV572-10PL
Tube Specs: http://shop.ehx.com/catalog/tubes-specs/sv572-10-svetlana.pdf
Tube Specs: http://shop.ehx.com/catalog/tubes-specs/sv572-10-svetlana.pdf
Power Tube
Country of Origin: RUSSIA
Country of Origin: RUSSIA