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(!!!!) (Best Siemens Pair) 12AT7=ECC81 Siemens Halske Germany NOS 1967-1970 (8.2/9.2ma and 8.4/9.4ma)
(!!!!) (Best Siemens Pair) 12AT7=ECC81 Siemens Halske Germany NOS 1967-1970 (8.2/9.2ma and 8.4/9.4ma)
$ 149.99
1 low noise pair) 12AT7=ECC81 Siemens Halske Germany NOS 1970
1 tube) 8.2/9.2ma Gm=4900/5100 (1970)
1 tube) 8.4/9.4ma Gm=5000/5400 (1967)
(very quiet, high Gm, very good section balance, good detail, more neutral, good value)
Amplitrex Test Data:
Good Ma range 7-10ma
Good Gm range 4500-5500
- Earmax Anniversary
- Lector
- Berning
- Eclair Engineering 'Evil Twin' Tube DI (direct input box)
- Atma-sphere preamp
- JC Morrison custom phono
See more: vacuum tube
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 (Best Siemens Pair) 12AT7=ECC81 Siemens Halske Germany NOS 1967-1970 (8.2/9.2ma and 8.4/9.4ma) "Pin It")