RCA 19T8 Vacuum Tube Valve NOS NIB HCC85 Nonal double-D getters

double-D getters

Transconductance measured 62 for Tube One and 64 for Tube Two where minimum (65%) is 40

It measured a nearly-perfectly-balanced 84/82 where minimum (65%) is 50/50 and 100% is 77/77

They have shoulder / ST / Coke-bottle bottles and dimpled-sheet getters

Transconductance was 1530 for Tube One and 1430 for Tube Two where new/nominal is within one standard deviation of 1900

RCA 19T8 Vacuum Tube Valve NOS NIB HCC85 Nonal double-D gettersThis new old stock, new in box RCA 19T8 tube tested to spec on our Paul Hart calibrated TV7 U. 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 TO $250 IN