ECC88 = 6DJ8
	Equivalent 6DJ8, 6922, 7308 Similar type   With different Vf PCC88 = 7DJ8 UCC88 = 21DJ8 CV number CV5358 Swedish Mil.nr.   Tektronix part no 154-0187-0x 154-0305-00 Hewlett-Packard part no. 1932-0022 1932-0035