4 US-Made 12A7 Vacuum Tubes Valves NOS NIB Lot Of Four 6D6 Black Glass but has GE 188-5 and

but has GE 188-5 and a sutured top

This hardcover book is in very good condition

The Superior-tested tube measured "low to medium-good

One is Wards -branded and the other is Zenith

Tube One: 44/48

4 US-Made 12A7 Vacuum Tubes Valves NOS NIB Lot Of Four 6D6 Black Glass but has GE 188-5 andThese four US made new old stock, new in box 12A7 tubes tested to spec on our Paul Hart calibrated TV7 U. BECAUSE OF THE BIZARRE, INTRUSIVE AND DRACONIAN GERMAN PACKAGING REGULATIONS AND THE SEVERE FINES AND PRIVACY INTRUSIONS ASSOCIATED WITH THEM WE WILL LONGER SHIP TO GERMAN ADDRESSES. WE WILL HAPPILY SEND YOUR PACKAGE TO A NEIGHBORING COUNTRY OR MAKE SUITABLE ARRANGEMENTS. IN 2021 WE PURCHASED 150,000 VACUUM TUBES. IF IT'S NOT LISTED, WE PROBABLY