1 tube el3 Valvo / Philips made in Italy
the early first type with full silver mesh plate
this is not the EL3N but the EL3 ! the first type
straight shape
long & pinched at top dome
tested on tube tester Funke W19S = 32mA (reference good at 15mA)
full windmill mica on top
internal coated & upper silver getter
the "red serie" old production
twin getter: bottom with tray getter plus top getter
see pictures for more details
box 199