Mullard ECC88 6DJ8 Matched Pair BVA Blackburn 1957 GA2 Same code NOS

GA2 B7E (GA2 = Blackburn change code for ECC88, B = Blackburn, 7 = 1957, E = May). Like a warm British jacket of the finest tweed, these glorious tubes have an attractive sweet warmth in their midrange and lower regions.