ORIGINAL: Topgun2mo
I imagine the same logic/circuit could be used to power a glow system in lieu of using a 2 volt battery.
Have you used a variable resistor with one of these circuits before?
You CAN use a pot to vary the output voltage. I think driving a glow plug from a 12VDC source is a waste of power. ALOT of "head" to overcome. Maybe a 2V plug from a 3.6 or 4.8V pack would be more like it.
Dave Rigotti