For sale one tube type LP2 Marconi made in Italy
with own box
power triode
direct heater triode DHT
silver mono plate ribbed
silver pan getter bottom
black socket base
tested strong with 2 volt heater & 150 volt on anode = 34mA (reference good at 19mA)
LP2 = VT140_GPO = NR42
tuber type Power Output triode from late 1920's rare
Socket base Europe 4-Pin B4
Filament heater Vf 2 Volt / If 0.2 Ampere / Direct / Battery =
box 207