3 Sylvania 6R7 6R7GT Vacuum Tubes NOS NIB Lot Of Three Matched Pair 12B4

3 Sylvania 6R7 6R7GT Vacuum Tubes NOS NIB Lot Of Three Matched Pair 12B4This lot of three new old stock, new in box Sylvania MANUFACTURED, GM LABELED 6R7GT tubes tested to spec on our Paul Hart calibrated TV7 U, testing to spec. 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

There are two GEs

This is a Dutch auction for Sylvania 35W4s

There is no listening report as this LP is still sealed

Tube One: 20 milliamps' plate current

This double CD plays fine

I have played them in my Musical Paradise 301 MK 3 (with adapters

Tube One measured 63/65 and Tube Two measured 66/64 where minimum (65%) is 50/50

new in box Westinghouse 6S4A tubes tested to spec on our Paul Hart-calibrated TV7/U

2370 micromhos and 20

The 1P21 is missing a pin

new in box milspec black plate GE JAN-6Y6GT / JAN-CG-6Y6GT tubes tested to spec on our Paul Hart-calibrated TV7/U

The spine is in fine shape with no loose pages and the dust jacket is also in good shape