Ed wrote:
I can't certify that its the smallest, but the Kenwood TM-G707A has
a pretty darned small control head.... and is fairly inexpensive for
a dual band rig, to boot. I like it so much I now have three of them.


Ed K7AAT

I concur. 5 1/2 x 1 9/16 is the approximate W x H of the control head.