ITT 50DC4 Vacuum Tube Valve NOS NIB February 21 2023 It light to moderate surface

It light to moderate surface noise

Transconductance measured 68/75 for Tube One and 72/68 for Tube Two where minimum (65%) is 56/56 and 100% is 86/86

new in box matched pair of Raytheon 6SD7GT / JAN-CRP-6SD7GT pentodes was tested on our Paul Hart-calibrated TV7 for shorts

This book is in good condition

new in box milspec black plate GE 6Y6GT / JAN-CG-6Y6GT tubes both tested 56 on our Paul Hart-calibrated TV7/U where minimum (65%) is 40 and 100% is 62

ITT 50DC4 Vacuum Tube Valve NOS NIB February 21 2023 It light to moderate surfaceThis new old stock, new in box ITT 50DC4 tube tested to spec on our Paul Hart calibrated TV7 U. BECAUSE OF THE BIZARRE, INTRUSIVE, CRUEL AND DRACONONIAN 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