Gecko's manual suggests that maximum voltage of the VFD 10VDC line (pin 9) is 12V.

The NowForever D100 series VFD that came with the machine is rated at 12V; however the multimeter suggests it more like 13.4VDC ?

I'd rather not cause an issue with the G540 - I could rig up a Variable Output Voltage Regulator (LM317T) to convert this to 10V; however doing so is a bit of a pain.

Any suggestions would be appreciated.