Lot Of 4 Cunningham SylvaniaSx-281 CX-381 Globe Balloon Type 81 Rectifier Tube Engraved TESTED

*****SOLD AS IS FOR DISPLAY ONLY NOT WORKING NOT A GOOD TUBE ******

3 have good continuity and 1 of those heats but but wont light or test. One has NO CONTINUITY

3 HAVE FLAT SHEET FOIL GETTERS 2 SMALL ONE IS BIG

1 HAS A ROUND CUP GETTER

ALL 4 ARE Clean AND tight and all have engraved bases