My Bro has had 2 of these for years (he bought them off our uncle, who bought them new back in the 60s). Used to use them for PA all the time, but he doesn't use them anymore.
A couple of weeks ago I got one off him to try out as a bass amp. It's had a recent service, but needs 2 valves (KT88) & I need to build/buy a cab to use with it.
What I find most interesting, is that there is very little on the internet about Radiovox Amps, a couple of old radios, but not a sniff of info about Radiovox Sound Systems (other than one person saying that he thinks they were for PA).
Here's a pic for proof...
[url=https://flic.kr/p/Q53Dd8][/url]
I'm planning on giving it a cosmetic refurb. Which is simply repainting the case & polishing up the handles with some steel wool.
This thing weighs a ton. But if it sounds good, I have a drummer.