1 low noise tube) 12AT7WA Raytheon black plates – triple mica – O getter halo 1975 era like new

8.5ma Gm=5200

9.2ma Gm=5600

Recommended for

– Eclair Engineering ”Evil Twin” Tube DI (direct input box)
– Atma-sphere preamp
– JC Morrison custom phono
– David Berning Quadrature Z amp