General Electric GE 6DS4 Vacuum Tube Valve NOS NIB April 25 2023

General Electric GE 6DS4 Vacuum Tube Valve NOS NIB April 25 2023This new old stock, new in box GE 6DS4 tube tested to spec on our Paul Hart calibrated TV7 U. IN 2021 WE PURCHASED 150,000 VACUUM TUBES. IF IT'S NOT LISTED, WE PROBABLY HAVE IT. PLEASE ALSO SEE OUR 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 OF THE TUBES WE SELL ARE OVER 50 YEARS OLD. WE CANNOT GUARANTEE FOR FAILURES AFTER POWER UP AS THERE IS NO WAY TO DETERMINE

It is dead quiet when the preamp is muted and has excellent frequency response and sound-staging

new in box 6EM5 tube tested to spec on our Paul Hart-calibrated TV7/U

new in box matched pair of black plate GE-MANUFACTURED

54 and 54 where minimum (65%) is 38

They tested as follows: 56 and 58 where minimum (65%) is 395 and 100% is 60

I’ve never met a von Karajan completist as Karajan was just too prolific for any normal human to be a von Karajan completist

steel support rods and outstanding flashing

This RCA 6JM6A tube is new old stock

Transconductance measured 44 and 46 where minimum (65%) is 30

This new old stock-testing RCA clear top

where minimum (65%) is 50/22

new in box perfectly-matched pair of milspec Tung-Sol JAN-CTL-6098 / 6AR6WA output tubes was tested on Paul Hart-calibrated TV7/U for shorts