CV6 DET20 Mullard Red Print New Old Stock Valve Tube F19 | eBay
PAIRE DE TUBES Valves Gec Det24 Triode Nos EUR 61,72 - PicClick FR
CV6 7193 half of 6SN7GT | Round black plate this excellent tube, with same characteristic as 6SN7GT x 2tubes packing Original military box with test result sticker on box, tubes... | By