60%

Balanced 5Z3 Ward's Airline (made by Westinghouse) NOS Vacuum Tube, TV-7D Tested

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Original price was: $26.35.Current price is: $15.81.

Category:
Meta:
Non-Domestic Product : No
Country/Region of Manufacture : United States
Modified Item : No
Custom Bundle : No
Type : Vacuum Tube
Model : 5Z3
Brand : Airline

Balanced 5Z3 Ward’s Airline made by Westinghouse NOS Vacuum Tube Black Ribbed Plates High Rectangle D Getter Tested at 59/59 on a calibrated TV-7D/U tube tester Where 40 is minimum *We use the following testers: *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) * B&K 747B calibrated 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 form For 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.

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