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Vintage NOS Tung-Sol 12AT7 Vacuum Tube | 1957 Gray Plate USA | Tests 99%/99%:
$25.00
Up for sale is a single vintage US-made Tung-Sol 12AT7 vacuum tube from 1957 (EIA code 322, date code 5734).Testing Status: This tube has been professionally tested and shows outstanding 99% / 99% emissions, confirming that both triode sections are strongly matched, balanced, and running at full life expectancy. No shorts, leaks, or microphonic issues detected.Physical Attributes: Original clear glass envelope, short gray internal plates, and pristine top silver flashing. The vintage white ink stamping is clean and legible (showing code 322DH3 on the lower glass). Perfect as a high-fidelity preamp upgrade or a phase inverter/reverb driver replacement in vintage Fender guitar amplifiers. Will be packed securely in thick bubble wrap to guarantee safe arrival.
