ONE Sylvania 2A3 Vacuum Tube/engraved/ Springs/ Foil Getter/Amplitrex TESTED

ONE sylvania 2A3 vacuum tubes. Tested on Amplitrex (fixed bias mode). Bottom foil getter. Engraved base / hot stamp / etched. TUBE 1 =5100 micromhos @ 60.6mA plate current.

eBay