(!!!!) (slightly microphonic pair) E182CC=7119 Philips Miniwatt SQ Holland NOS large "O" getter halo 1962 (35/36ma and 36/34ma)1 low noise slightly microphonic pair) E182CC=7119 Philips Miniwatt SQ Holland NOS large "O" getter halo 1962 1 tube) 35 36ma Gm=15,700 15,000 1 tube) 36 34ma Gm=14,600 14,200 Matched on Amplitrex AT1000 Good Ma range=30 40ma 7119 is best sub for a 5687 and visa versa Modwright preamp Audio Note DAC 4 Audio Note Jinro amp Audio Note L3 Audio Note M3 preamp Manley Ray Samuels Raptor and B52 Aria VW5XL Modwright Sony DVP999ES Audion 845 Black Shadow