Offered a matched pair of NOS SIEMENS ECC83/12AX7 tubes.Date of manufacture 1963.Purchased from Brent Jesse and never used due to amplification change.Pristine in appearance which is what you should expect from an NOS designation.Average life span 10,000 hours.
Bench tested at:
#1 102/102
#2 102/102
Offered at $125 for the pair plus shipping immediately post payment and I would invite you to check my Audiogon feedback under my member name.
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