2x NEC Nippon (WE Japan) EF86 6267 ~ 6cf8 z729 cv4085 Neumann Mic U67 Manley Vox

6267 EF86 Z729 8D8 6F40 M8195 CV2901 CV4085 CV4086 CV8068 CV8081 CV10098 6CF8 6Ж32П 6267 6BK8 6F22. full mutual gm conductance test + leak/short/gas/life/sound checks, strong pristine nos pair: 100/101 % gm (65).

eBay