GU-74B GU74B ГУ-74Б eq.4CX800A/4CX800 SOVIET POWER TUBE NOS
GU-74B / GU74B Tetrode Tube, New Old Stock, Unused from Emergency Radio ZIP Kit
GU-74B GU74B TETRODE TUBE 4cx800 Radio Vtg Russian 29486 1940s Sputnik Svetlana
Written on bottom ( 29486).
GU-74B / GU74B Tetrode Tube, New Old Stock, Unused from Emergency Radio ZIP Kit
Written on bottom ( 29486).
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