Re: So we've gone from six to five
"But is' quite possible your first radio set would still work today (if there's still something being transmitted on those wavelengths)"
If you think I would be happy powering up something with 55 year old big electrolytics...
Valves not a problem - I did test one of my old EF86s the other day and it seemed to work, no blue glow - but electrolytics are prone to degradation. I once worked with someone who had had a colleague die when a 68000 microfarad experimental capacitor exploded, after which they put in pressure relief valves.