UriVen, Premier circulation
US$ 19.95
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3 Sylvania Number / Type 19 #19 Vacuum Tubes Lot Of Three For Your Bottlehead This GE-MANUFACTURED
3 Sylvania Number / Type 19 #19 Vacuum Tubes Lot Of Three For Your Bottlehead This GE-MANUFACTURED
$20.00
Description
This GE-MANUFACTURED
Transconductance readings are 30
Special Features: black/dark plates
IF THERE WERE A TEST FOR FUTURE FAILURE
new in box US-made 9AU7 tubes tested to spec on our Paul Hart-calibrated TV7/U
3 Sylvania Number / Type 19 #19 Vacuum Tubes Lot Of Three For Your Bottlehead This GE-MANUFACTUREDThis lot of three Sylvania MANUFACTURED number 19 tubes was tested on our Paul Hart calibrated TV7 U for shorts, gas and emissions. There were no shorts or gas. They measured 28 30, 34 34 and 38 41 where minimum (65%) is 25 25 and 100% is 38 38. They have engraved hot stamped bases on is Champion branded and the other is Zenith. Their internal structures are all the same, though they are labeled differently. WE HAVE SCORES OF THOUSANDS OF VACUUM
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