One Pair Philips Miniwatt SQ E88CC D-getter 1958'y - same codes.. STRONG PARAMETERS : 10 / 11 mA! + 10 / 11 mA! The tubes were listened to through a preamplifier using headphones, with the left and right channels separated. The sound is beautiful, without distortion ! :) **** SUPERB SOUNDING, VERY LOW NOISE, HIGHEST RESOLUTION OF SOUNDS, VERY LOW MICROPHONE EFFECT ! **** GREAT FOR AUDIO TUBES **** by PHILIPS / Heerlen, Holland code ! Vintage 50 - 60's Made S.Q. - Special Quality NOS / NIB |