Lot of Five Vintage SIEMENS E88CC 6922 Gold Pin Preamp Tubes Germany

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Lot of Five Vintage SIEMENS E88CC 6922 Gold Pin Preamp Tubes Germany:
$94.99

Up for sale is a lot of five vintage Siemens E88CC 6922 preamplifier vacuum tubes. All of these tubes were manufactured by Siemens in Germany, and all of these tubes have gold pins. Authentic Siemens vacuum tubes pulled from working electronic test equipment that was scrapped decades ago as obsolete. Please see the pictures for an accurate depiction of their cosmetic condition. These tubes all test well above minimum good, but may have mismatched triode sections. Pricing has been set to reflect the test results as listed below - you are buying a mixed lot in terms of test results (just divide each triode section test result by the 11,500 gm an NOS tube is expected to test at, and you will get the % of NOS test result for that triode section; for example Tube 1 below would be testing 70% in triode section one, 69% in triode section two). Shipped in new generic tube boxes. I have numbered the tubes one through five as seen in the pictures reading left to right.

Pricing reflects the test results below ( where NOS/100% = 11,500 gm (uhmos), and minimum good/50% = 5,750 gm (uhmos)):

Tube 1:

Triode Section 1: 8,021 gm (uhmos) Triode Section 2: 7,887 gm (uhmos)

Tube 2:

Triode Section 1: 8,823 gm (uhmos) Triode Section 2: 6,684 gm (uhmos)

Tube 3:

Triode Section 1: 6,149 gm (uhmos) Triode Section 2: 8,689 gm (uhmos)

Tube 4:

Triode Section 1: 10,962 gm (uhmos) Triode Section 2: 8,288 gm (uhmos)

Tube 5:

Triode Section 1: 8,422 gm (uhmos) Triode Section 2: 10,962 gm (uhmos)

A perfect new (NOS/100%) E88CC 6922 tube would be expected to test 11,500 gm (uhmos) in each triode section, and a minimum good tube reading would be 5,750 gm (uhmos) in each triode section.Tested on a true laboratory grade vacuum tube tester - The USM 118B Cardmatic made by Hickok for the US Navy. It is meticulously maintained and always in calibration (I maintain and calibrate all my electronic test equipment, have for several decades). Google the USM 118B, read up on vacuum tube testing, and be an informed buyer. No BS testing here, folks, and an old school, honest seller.

Shipping by USPS Priority Post (fast, tracked, insured).

Save on multiple sale purchases - willing to combine shipping to save money (pay shipping charge on the first tube only). Can safely ship up to six small signal tubes in the same box. I will refund the excess shipping through paypal. 

Thanks