Are tubes or valves still made?

Yes tubes are still manufactured today, in Russia, the Czech Republic, China and Yugoslavia. Some of these countries have purchased a lot of plant equipment from the British (GEC) and the Dutch (Philips) to continue this great tradition. The guitar industry demands many thousands of tubes per month and combined with the smaller HiFi industries needs, they will probably be around for many more years to come. Also many high power transmitters used in radio etc, are still tube based so these factories rely on this business too.