Small size tube amps...any recommendations??

I'd like to know if there are triode or whatever amps out there that use skinny power tubes the size of a pinkie....that don't use bigger EL34 or 6550 size tubes.

I have relatively efficient speakers...Soliloquy 5.3 ...90dB...reportedly will play with as few as 8 watts.

A long time ago I heard a small amp with small-diameter power tubes and it sounded very nice - but I needed gobs of power then for my DQ 10's.

Please recommend some to check out.

Many thanks!

Luis