DuMont 6DT5 Vacuum Tube Valve NOS NIB

DuMont 6DT5 Vacuum Tube Valve NOS NIBThis new old stock, new in box Sylvania 6DT5 tube 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 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.

GE-BRANDED 40KG6A / PL509 tube tested to spec on our Paul Hart-calibrated TV7/U

new in box US-made 6S8GT tubes tested to spec on our Paul Hart-calibrated TV7/U

Minimum (65%) is 45

Transconductance measured 27 for Tube One and 30 for Tube Two where minimum (65%) is 25

new in box RCA 6JT8 tube tested to spec on our Paul Hart-calibrated TV7/U

a fence-like strip on top of the top spacer and dimpled sheet getters

IF AN ITEM IS MARKED "DELIVERED

new in box RCA 6AB5 / 6N5 magic eye indicator tube is nice and bright

It measured 45 in its triode section where minimum (65%) is 25 and 100% is 39

This hardcover book -- and its dust jacket -- is in very good condition

anode radiators for cooler tube operation and longer life and R2M and K3M batch codes on their bottles

This matched pair of RCA Cunningham Radiotron Type 49 output tubes was tested on our Paul Hart-calibrated TV7/U for shorts