8KA8 TUBE SYLVANIA NIB TESTED & BOXED VINTAGE COMMERCIAL SURPLUS
Boxes might show wear from being in storage. Everything can be resolved without leaving a negative feed back. Call for technical specs.
Matched Pair Sylvania 6LB6 Beam Power Amp Vacuum Tube Tests NOS on TV-7U
Matched Pair Sylvania 6LB6 Beam Power Pentode Vacuum Tubes. Both test as NOS at 98 & 96 with 54 being the minimum score for a good tube (with 65% of life re maining).
NOS NIB Matched Pair Sylvania JAN CHS 6SN7W Vacuum Tubes Same 1945 Date #6
These were was tested on our Triplett 3444A tester with results of 2600/2600 and 2650/2600, where 2600 is the average new value. Do not buy this item and then ask us to falsify the forms. We always declare the sales price, as required by law.
Pair of Sylvania 6X4 Tubes – Hickok Tested
These tubes were tested on a Hickok 600 tube tester. Both tubes tested good, strong, and balanced.
NOS Sylvania 6X4 Rectifier Vacuum Tube
One NOS Sylvania 6X4 rectifier tube.
Sylvania 5881 / 6L6WGB Beam Power Tube Power/Output. NIB USA.
5881 =6L6WGB. Beam Power Tube Power/Output. Tube type Octal (Int.Octal, IO) K8A, USA 1935.
Vintage Vacuum Tube Lot Mixed Brands RCA GE Zenith Sylvania Untested 66+ Tubes
This lot includes a wide variety of tube types and sizes. Tubes have not been individually tested. Visual inspection only. Most appear physically intact with no obvious broken glass, but functionality is unknown.