4 piezas x 5C4S 5Ц4С ~ 5U4S ~ 5Z4 ~ CV1863 RECTIFICADOR TUBOS DE COLECCIÓN KOBRA URSS = DDP
/ 5U4S / 5Z4 / CV1863 Kenotron TUBE. 5C4S (Cyrillic=5Ц4С ). lot 4 pcs. Valves can be of different years of manufacture and different manufacturers. Each valve is individually tested with a tube tester.