Amperex 4GK5 Vacuum Tube Valve NOS NIB Kapp 1008 79/77 where minimum (65%) is

79/77 where minimum (65%) is 50/50

Transconductance measured 28

Tube One (GE-MANUFACTURED

63-29 188-20 date/EIA codes

This LP is in nice shape

Amperex 4GK5 Vacuum Tube Valve NOS NIB Kapp 1008 79/77 where minimum (65%) isThis Amperex 4GK5 tube tested to spec on our Jackson 648 Mutual Conductance tester. BECAUSE OF THE BIZARRE, INTRUSIVE AND DRACONIAN GERMAN PACKAGING REGULATIONS AND THE SEVERE FINES AND PRIVACY INTRUSIONS ASSOCIATED WITH THEM WE NO 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 HAVE IT. PLEASE ALSO SEE