And I'm hanging on to my Big Muff Pi. There are only a handful of tube manufacturers left, in Europe, China and Russia. One of the major factories in Yugoslavia was bombed by Nato, so things are even tighter. Tube facts and lore, until recently going the way of the dodo, are slowly crawling back. While original manuals are collectors' items, reprints and new versions are appearing.
Vacuum tubes are wasteful of energy.
This is necessary to produce an electrical flow in a tube. Decide for yourself. All rights reserved.