Dunno where you might find them - but verier controls would be nice. For
fine adjustment just turn the knob. For course adjustment - push the
button in the center to unlock the vernier - then just push or pull the
knob in or out for gross changes. This type of thing is used on small
airplanes for throttle and propeller control. Why not heater controls?

John

On 2/18/2014 1:16 PM, dofunk@yahoo.com wrote:
> Thanks Ben
> This will be my next recon trip to the you pull it yard!
>
> Sent from Yahoo Mail on Android
>