Description
one tube res964 Telefunken Germany mesh plate globe balloon cup getter old early production tested strong on tube tester Funke W19S = 24,5mA (reference good at 13mA) RES964 = RTP4 = P43 = WE30 = P435 = P43m = TE434 = RS4143 = RS4543 = E443H = L496D = PP4101 power pentode for last stage audio power output Socket Europe 5-Pin , B5 Filament Heater Vf 4 Volt / If 1.1 Ampere / Direct / box 183