3 US-Made 17DE4 Vacuum Tubes NOS NIB Lot Of Three Performance

3 US-Made 17DE4 Vacuum Tubes NOS NIB Lot Of Three PerformanceThese three US made 17DE4 tubes tested to spec on our Paul Hart calibrated TV7 where minimum (65%) is 50. WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES. IF IT'S NOT LISTED, WE MAY HAVE IT. PLEASE ALSO SEE OUT 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 FORMS OF SHIPPING EXCEPT MEDIA MAIL ARE AUTOMATICALLY INSURED UP TO $100. ETSY PURCHASE PROTECTION COVERS ITEMS UP

an anode radiator for cooler operation and longer tube life and a banded-cross top mica spacer

25 and 26 where minimum (65%) is 21

new in box GE 26LW6 tube tested to spec on our Paul Hart-calibrated Hickok TV7/U

I would rated it a 5

They tested as follows: 66/38

40 and 62 where minimum (65%) is 40

new in box RCA 3A3C tested to spec on our Paul Hart-calibrated TV7/U

It measured where minimum (65%) is and 100% is

These three RCA 6MD8 tubes are new old stock

Transconductance: 1410 / 1411 (New is approximately 1450)

and 34 on our Paul Hart-calibrated TV7/U where minimum (65%) is 25

Transconductance measured 57 for both tubes where minimum (65%) is 40