International Servicemaster 26LX6 Vacuum Tube NOS NIB

International Servicemaster 26LX6 Vacuum Tube NOS NIBThis new old stock, new in box Japanese made 26LX6 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

ladder plates and side D-getters

This lot of seven RCA industrial-grade 1852 (6AC7) tubes was tested on our Paul Hart-calibrated TV7/U for shorts

but has GE 188-5 and a sutured top

Plate current measured 27

The Hickok-tested 6AV5 tested 4200 micromhos where new/nominal is 3900

These tubes have steel plates

This new old stock-testing matched pair of Sylvania 6AU6 tubes was tested on our Paul Hart-calibrated TV7/U for shorts

They tested 74/41 and 83/57 where minimum (65%) is 50/40

nicely-matched pair of General Electric 12AU7/ECC82 dual triodes was tested on our Paul Hart-calibrated TV7/U for shorts

Unfortunately I cannot determine who manufactured it

new in box Sylvania 7X7 tubes tested to spec on our Paul Hart-calibrated TV7/U

They measured 50/68