For Alan, For Albrecht, For Alinco, For ARC, For Audeze, For Audioengine, For Audiolab, For Audioline, For AudioQuest, For Audiovox

Up for sale 1pcs BRAND NEW GS-9B tube. GS-9B its microvave version GI-7B Has military stamp OTK – rhombus. 100% brand new and working.