EC90
	Equivalent 6C4, 6C4W, L77, M8080, QA2401, 6100, 6135 Similar type   With different Vf   CV number CV133, CV852, CV2842, CV4022, CV4058, CV5183 Swedish Mil.nr. M2462-402 Tektronix part no 154-0029-00 Hewlett-Packard part no. 1921-0005