SKU:88515784606
2 National Union NU JANCNU1203A VT243 7C4 Vacuum Tubes NOS NIB Milspec Lot Of Two
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Ships within 48 hours · Estimated delivery Sep 28 - Oct 3
Description
2 National Union NU JANCNU1203A VT243 7C4 Vacuum Tubes NOS NIB Milspec Lot Of TwoThese two World War Two vintage milspec JAN CNU 1203A VT 243 7C4 tubes tested to spec on our Paul Hart calibrated TV7 U. WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES. IF IT'S NOT LISTED, WE MAY HAVE IT. PLEASE ALSO SEE OUT ETSY SISTER SITE "LOWTECHTWOO" AND OR CALL OR TEXT US AT 202 372 6931 IF YOU DO NOT SEE WHAT YOU NEED OR HAVE ANY QUESTIONS. 1. MOST FORMS OF SHIPPING EXCEPT MEDIA MAIL ARE AUTOMATICALLY INSURED UP TO $100. ETSY PURCHASE PROTECTION
OEM-BRANDED black glass 6K6GT tubes were tested on our Maxi-Matcher tube tester with 325 volts on the plates and a bias of -36 volts and tested as follows:
They measured (from top to bottom
The bracelet itself lacks a reference number
Setchell-Carlson-BRANDED 6GF7A tubes tested to spec on our Paul Hart-calibrated TV7/U
Plate current draw was 31 milliamps for both
where minimum (65%) is 40/40
new in box Sylvania 50X6 tubes tested to spec on our Paul Hart-calibrated TV7/U
new in box Philco 12AD6 tubes tested to spec on our Paul Hart-calibrated TV7/U
This pressing has light surface noise audible in quiet passages
This matched pair of RCA 6K6GT tubes was tested on our Maxi-Matcher tube tester with 325 volts on the plates and a bias of -36 volts
new in box GM Delco 10JT8 tube tested to spec on our Paul Hart-calibrated TV7/U
new in box RCA 13J10 / 13Z10 tubes tested to spec on our Paul Hart-calibrated TV7/U
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