These are Sylvania CHS 2A3 black plates in mint JAN boxes, specially selected to fulfill high US army standards and famous for their build quality and robustness. All tubes are 100% new with strong emission. Perfect printing marks without any scratches. More than 10 pcs with same codes in stock.
On above photos is perfectly matched pair, 019 code on backelite base
Click to see All 2A3 TRIODES in stock