All tubes are tested on a professionally calibrated Triplett 3444.
Amperex PQ 6922 -1960 - Made in USA - $119/pair Free Shipping Tube #1: 12.3ma @ 11,400gm and 12.4ma @ 11,700gm
Date Code 7L5 *0L – 1960/December - Amperex New York Tube #2 10ma @ 10,250gm and 9.6ma @ 9,800gm
Date Code 7L5 *0L - 1960/December - Amperex New York 10,000gm is the standard for a new tube on a Triplett 3444. No Gas or Shorts. 5 Day Return Policy - I endeavor to thoroughly test your tubes before shipment to ensure that I represent them accurately. If they do not perform as expected in your system - microphonics or noise for example, then you may return them for a full refund. Buyer pays return insured shipping. The 5 Day Return is not intended to provide a Buy-Try-And-Return method by which a Buyer can "tube roll" and return them if they do not produce a subjectively pleasing result.
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