All tubes are tested on a professionally calibrated Triplett 3444.
These test as NOS. Siemens 6922 (Branded CBS) - Grey Risers - Early1960s - Made in Germany - $100/pair +$8.95 USPS Priority Mail Tube #1: 13ma @ 11,250gm and 13ma @ 11,500gm Tube #2 14ma @ 13,000gm and 14ma @ 13,000gm
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.
| 
