(!) (Best Value Single) ECC81=12AT7 Siemens Halske Germany "D" getter 1960 era used/good (8.8/7.5ma)

1 low noise tube) ECC81=12AT7 Siemens Halske Germany "D" getter 1960 era used/good - date code on bottom of tube

1 section) 8.8ma Gm=4600

1 section) 7.5ma Gm=4300

- Earmax Anniversary
- Lector
- Berning
- Eclair Engineering 'Evil Twin' Tube DI (direct input box)
- Atma-sphere preamp
- JC Morrison custom phono