For a while there, triodes were the biggest craze to hit audio in a decade at least. After years of nothing more exciting than new digital formats, the single ended amplifier exploded onto the local marketplace and captivated the attention of audiophiles and industry gums. It was different, it was new, it was classic, and it was HIP. At first, triodes had the ultimate qualification for hipness going on — you couldn’t buy the stuff even if you had the money.