hard to say....
there are some really good small amp designs out there though.
I had once figured out, and drawn plans for a really small amp that used a pair 12AX7s and 4 12AT7's.... driven push pull parallel into a Hammond output transformer. Two gain stages, full long tail pair, and four output tubes, giving abuot 1 watt total output.
There's also the micro-amp tube amp out there... very good tones, but pricey.
http://zvexamps.com/
there are some really good small amp designs out there though.
I had once figured out, and drawn plans for a really small amp that used a pair 12AX7s and 4 12AT7's.... driven push pull parallel into a Hammond output transformer. Two gain stages, full long tail pair, and four output tubes, giving abuot 1 watt total output.
There's also the micro-amp tube amp out there... very good tones, but pricey.
http://zvexamps.com/