Submini Tube AmplifiersSubmini Tube amps are smaller tube amps, usually using fewer components than their full sized siblings.
Superfly see also Superfly in a 1590A
Adam's Amplifiers - Links to datasheets and a few different projects, both guitar and hifi amps actually.
Collection of submini tube projects - Both amps and effects.
A few submini amp projects and information about tubes and such