1x NOS Brimar GtBritain GoldGrid BlackPlate 12AT7 ECC81 ~ GrailAudio 6060/CV4024

A collectible audiophile darling! our high power output test simulates real circuits, and applies up to 250v, more than many other testers. full mutual conductance test +life test pass (key longetivity indicator) + leak / short / gas check.

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