Tubes Tested on Amplitrex AT-1000 computerized tube tester (fixed bias mode). Oval mica shows made by Tung Sol. TWO Tung-Sol 45 vacuum tubes. Foil getter. Tubes test 2140 and 2260 where 1300 micromhos is pass/fail grade.
TWO Tung Sol Type 45 Vacuum Tubes/Amplitrex Tested / Foil Getters Oval Mica 245
Tubes Tested on Amplitrex AT-1000 computerized tube tester (fixed bias mode). Oval mica shows made by Tung Sol. TWO Tung-Sol 45 vacuum tubes. Foil getter. Tubes test 2140 and 2260 where 1300 micromhos is pass/fail grade.
TWO Tung Sol Type 45 Vacuum Tubes/Amplitrex Tested / Foil Getters Oval Mica 245
Tubes Tested on Amplitrex AT-1000 computerized tube tester (fixed bias mode). Oval mica shows made by Tung Sol. TWO Tung-Sol 45 vacuum tubes. Foil getter. Tubes test 2140 and 2260 where 1300 micromhos is pass/fail grade.
TWO Tung Sol Type 45 Vacuum Tubes/Amplitrex Tested / Foil Getters Oval Mica 245
Tubes Tested on Amplitrex AT-1000 computerized tube tester (fixed bias mode). Oval mica shows made by Tung Sol. TWO Tung-Sol 45 vacuum tubes. Foil getter. Tubes test 2140 and 2260 where 1300 micromhos is pass/fail grade.
TWO Tung Sol Type 45 Vacuum Tubes/Amplitrex Tested / Foil Getters Oval Mica 245
Tubes Tested on Amplitrex AT-1000 computerized tube tester (fixed bias mode). Oval mica shows made by Tung Sol. TWO Tung-Sol 45 vacuum tubes. Foil getter. Tubes test 2140 and 2260 where 1300 micromhos is pass/fail grade.
TWO KENRAD Type 45 Tubes /Amplitrex Tested +100% Gm / KEN-RAD 1940’s
Tubes Tested on Amplitrex AT-1000 computerized tube tester (fixed bias mode). Two KEN-RAD type 45 vacuum tubes. Tubes test at 2270 and 2100 where 1300 micromhos is pass/fail. Type 45 tubes: 1300 micromhos and 23.4 mA = pass/fail grade (65% of Spec value).
ONE National X245 Tube / Amplitrex Tested / Type 45 New In Box USA
ONE National x245 vacuum tube. Tubes Tested on Amplitrex AT-1000 computerized tube tester (fixed bias mode). -Tube #1= 2700 micromhos and 48.2 mA plate current. Type 45 tubes: Spec (new) = 2000 micromhos and 36 mA plate current.
TWO Marconi Type 45 Vacuum Tubes/Amplitrex Tested / 245 345 Radiotron Canada
Marconi / Radiotron. Tubes Tested on Amplitrex AT-1000 computerized tube tester (fixed bias mode). TWO type 45 vacuum tubes. Type 45 tube: Spec (100%) = 2000 micromhos and 36 mA plate current. Type 45 tube pass/fail grade= (65% of Spec value).
TWO Marconi Radiotron Type 45 Vacuum Tubes/ BIG D “Dallas” Getters / Canada
Marconi / Radiotron / GE. Square getters / BIG D “Dallas” getters. TWO type 45 vacuum tubes. Tubes Tested on Amplitrex AT-1000 computerized tube tester (fixed bias mode). Type 45 tube: Spec (100%) = 2000 micromhos and 36 mA plate current.
2X SILVERTONE Type 45 Vacuum Tubes ( TEST )
THIS ITEM USED ( TEST / LAST 2 PICTURE ) CONDITION.