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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 

 

 

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