Hello all, i've recently acquired a Sunn Sorado, and am curious as if anyone knows the date(ish) on it. Its got the original 6550 tubes but i cant find any dating stickers on them. Ive also read the grill cloth can identify but im not sure how to do that. I've attached all the pictures I have. Thank you!
My school recently started requiring additional layers of sign in for our school accounts, as previously it was just username/password. However, the second layer of security requires to use Microsoft authenticator for a OTP. The codes provided will not work with any normal OTP service, it has to be Microsoft Authenticator. Why do they go out of their way to build a proprietary authentication service rather than just use the same services everyone has used for years. This is very irritating, hope to see some change made on my schools end too.