This group is for enthusiasts of audio tube amplifiers/preamplifiers of a variety which are usually large, extravagant, and totally excessive, oftentimes employing tubes such as the GM70, GM100, 45, 112A, or the 845, hence the nickname "boatanchors".
We consider membership to start at amps which could anchor, oh say a 15 foot sailboat, on a moderately calm day.