What organs require tone cabinets?

[Ken Williams <kwilliams@sh-gpl.ti.com>]

There is a local elderly gentleman who will give me an old tube-type
organ hooked to an amplifier (tone cabinet, or maybe Leslie?) if I
just come and pick it up. He doesn't know what brand or model it is
and it doesn't work. I'm going to see/get it tonight and am a bit
excited.
Are there any early commonly available non-Hammond organs that require an
external tone cabinet?

Ken Williams