Auction is for two (super strong balanced pair ) tube (2 pcs) EF802 Military Tubes Telefunken Diamond Bottom NOS NIB  (~EF800, very very close, the same pinout, but without anode shield and less capacitances)  Very Low Noise Microphone Pentode. ''  Before the measurements, the tubes were preheated with a voltage of 4V, 5V and 6.3 V. Made in West Germany, in famous Ulm tube plant.  Very Strong Parameters - 8,5 / 8,5 mA! 100% = 6,3 mA