Dotcomformat

I'd like to get an oscillator (or set) that does NOT have an octave 
switch but instead has a knob (coarse tuning) that sweeps through the 
entire frequency range, from high to LFO. 

The Dotcom oscillators have ocatve (range) switches. 

It appears that MOTM's model 300 and 310 osc will do this, is that 
correct? Can anyone recommend any other osc that will sweep through 
the audio range down to an LFO?

Modcan's VCO 01 has an audio/ LFO switch. What is the range of the 
coasre tuning knob?

Frac rack 

Blacet's manual for their VCO says that it (coarse knob) sweeps 
through the entire range. Should I consider this a possibility if I 
use a couple of these...

http://synthesizers.com/qmpsa.html

... going into a frac rack?