Many thanks to SWLing Post contributor, Phill (W9IXX), who writes:
Thought might be interested in this if you haven’t already mentioned this site:
Check out his calendars!
Thanks for the tip, Phil! I know we’ve linked to article on this site before, but thanks for mentioning it again. This is truly a treasure trove for those of us who love vintage radio. I especially like the articles page which has a number of fascinating reports. Of course there are a load of photographs and recordings as well.