DRHamp
100+ Head-Fier
Never heard the 60s WEs so not sure about that. 50s Foton double micas are very good, and I had some 1985 Russian Reflector 6N3P that were outstanding - not equal to the Holy Grails mentioned before but very very good and cheap. I have some 60s Raytheon 5670 square getters that are good also. Don't recall if I tried Tungsols, but if so - they didn't make an impression.