Vibox

12AU7A RCA NOS black plate/square getter Vacuum Tube, B&K 747B Tested

Description: 12AU7A RCANOSVacuum Tube Black Window PlatesTop Slanted Square GetterTested at 91/102Passed 'Life Test' on a calibrated B&K 747B tube tester where the Good range is 65-120*B&K 747B calibrated *Dan Nelson calibrated TV-7D/U with sweep tube adapters, & digital meter with plate current test at 150V. *Paul Hart calibrated/modified Westmore 501 (Triplett 3444)Test results may differ between various testers for many reasons such as technical design, aging components, etc. So while test results are a good indication of quality there can be some difference between the many differently designed & maintained testers.The following definitions are mine as I use them. 'Balanced' refers to comparing the gm test results between the lowest to the highest identical sections of a single tube. Within 3% I consider to be 'Balanced' 'Matched' refers to comparing the gm test results between the lowest to the highest of the identical sections of a set of tubes. 'Matched' I consider to be within 10%. Some call similar 'Gold Matched' 'Closely Matched' I consider to be within about 5%. Some call similar 'Platinum Matched' 'Tightly Matched' I consider to be within 2%. *For Multiple item purchases click the "Add to Cart" selection for each item *After all items have been added to your cart click on "Request Total From Seller" *An invoice will be returned with the correct 'combined shipping' & total due*If your purchase is not fully satisfactory please contact me .International customers welcome: Please do not ask for false value on the customs formFor combined international shipping you need to send an email listing the items you want to buy and I will create a single listing for all the items that you can buy with the corrected shipping charge*Tubes will be shipped in a cardboard box with packing, usually bubble wrap or sheet foam Packed for protection Packed for ease in unpacking *Tubes will generally be cleaned Clean tubes will radiate heat better & operate cooler *Pins will generally be straightened/cleaned as needed Cleaned pins make better electronic connection *Most tubes are shipped in their boxes (or replacement boxes) I often repair a box so it will function properly*I try to get your package in the next mail after receiving your order.

Price: 24.95 USD

Location: Paris, Texas

End Time: 2024-12-27T19:23:53.000Z

Shipping Cost: 4.5 USD

Product Images

12AU7A RCA NOS black plate/square getter Vacuum Tube, B&K 747B Tested12AU7A RCA NOS black plate/square getter Vacuum Tube, B&K 747B Tested12AU7A RCA NOS black plate/square getter Vacuum Tube, B&K 747B Tested

Item Specifics

Return shipping will be paid by: Seller

All returns accepted: Returns Accepted

Item must be returned within: 30 Days

Refund will be given as: Money back or replacement (buyer's choice)

Non-Domestic Product: No

Brand: RCA

Type: Vacuum Tube

Custom Bundle: No

Model: 12AU7A

Country/Region of Manufacture: United States

Modified Item: No

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