cornell do a 5-watt "plexi". i haven't tried it, but i have tried their other low watter, the romany plus, and it was really, really nice. i would assume (but could obviously be wrong) that the plexi is really nice too.
5 watts is probably still too loud for home use, but a lot more suited than 100 watts! Though i think it has a wattage selector too, for down to 1/2 watt, so might be a good idea actually.
would be worth looking into, at least (you'd want to try one, please don't take this as a recommendation!). it does run el84s instead of 34s, mind.