Hello, thanks for a very useful film. I have heard that there is a massive demand for well made audio valves so much so that a large American fabbricator of valves has plans to build them in America again. The humble valve lives on. Let's hope a British firm can do likewise to supply Europe with quality valves too.
I have three visually similar vacuum tubes like the one at 6:32, Telefunken RS 631. My father planed to make some audio amplifiers out of them, he did nothing so far. They just collect dust at the moment. Any ideas what to do with them?
Hello from New Zealand, I have a 1950's Telefunken valve radio that some day I want to restore. Where are you, and do you want to sell those vacuum tubes, they may suit my radio.
