Black winged cylinder plates and a bottom dimpled foil getter with a top cap in an ST envelope. this Tube was tested on the Jackson 103 tester were the minimum good is 25 and the average NOS reading for this Tube type is 36.
Item Tag: SYLVANIA
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NOS NIB Matched Pair Sylvania 7189 Black Plate Vacuum Tubes
These were was tested on our Triplett 3444A tester with results of 11000 and identical plate currents for both tubes, where 11000 is the average new value. Do not buy this item and then ask us to falsify the forms.
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4- NOS 7Y4 Full-Wave Rectifier Vacuum Tubes LOKTAL Chrome Domes Black Plate
Identical to 7Y4 = U149 = CV901. Tube type: Full-Wave Vacuum Rectifier. NOS tubes fall within the Gm characteristic range of an average tube, as published in the RCA RECEIVING TUBE MANUAL, which states “Individual tubes, like any manufactured product, may have characteristics that range above or below the values given.
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10 Sylvania 6BQ5 EL84 Vacuum Tubes 2 GE EL84 2 RCA EL84
TOTAL 14 ALL TEST STRONG -14 TOTAL 1O SYL, 2 RCA, AND 2 GE
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1956 Sylvania Thunderbird Transistor Radio Model 3102 working cond unknown as-is
Sylvania Thunderbird transistor radio with original unused earbud earphone. I do not know the working condition of this radio. Having said that, it sure is a clean piece that does not show abuse.
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SYLVANIA /6SN7 GTB / TUBE / TESTED / MADE IN UNITED STATES /
This particular tube has been tested and verified for quality and performance.