12AT7 ECC81- ECC801S - E81CC - CV491 - 6679 - 6060 - M8162- 6201 -CV4024 - CV455 - A2900 - B739. RFT ECC81 12AT7 NOS NIB Selected tubes. Perfectly balanced and matched pair (2tubes) "One series". price is for 2 matched tubes.
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