What really small tube combos w/ spring reverb are on the market? I'm talking 5 watts and under. I know of the Swart STR, any others? I think a 1-watt combo w/ spring reverb would be killer, however I've combed the internet and don't see any. I have a AC4 w/ a reverb pedal as my practice amp and its cool. However I'd love some real verb in a small combo.