Spark Plug Feed-Through Concept
Posted: Fri Nov 23, 2012 11:36 pm
Though I have often heard about using a spark plug as a feed-through, this may be a novel twist.
On Geiger Counter Enthusiasts, a member suggested, 'who says the spark plug has to be used in the normal way?'. Peter's idea was relating to construction of a pressurized ionization/GM chamber. Screw in the spark plug from the inside. Use the screw-off cap and threaded end to connect to the anode. Clip or weld a lead to the tungsten spark gap end on the outside.
As soon as I read this, I thought of Frank's "pillar of fire" cathode in a fusor. Considering two hemispheres of a fusor chamber, just make it to size so that when two spark plugs are screwed into the inside of the hemispheres (ceramic insulators inside instead of outside), their screw on caps or threaded top ends are the appropriate distance apart. You then have a spark gap negative center grid to attract the D ions.
Please pardon me if somebody else has already posted this idea. I had been considering using spark plugs as feed-throughs for my first demo fusor. Reading the GCE post caught my fancy.
Best Regards
On Geiger Counter Enthusiasts, a member suggested, 'who says the spark plug has to be used in the normal way?'. Peter's idea was relating to construction of a pressurized ionization/GM chamber. Screw in the spark plug from the inside. Use the screw-off cap and threaded end to connect to the anode. Clip or weld a lead to the tungsten spark gap end on the outside.
As soon as I read this, I thought of Frank's "pillar of fire" cathode in a fusor. Considering two hemispheres of a fusor chamber, just make it to size so that when two spark plugs are screwed into the inside of the hemispheres (ceramic insulators inside instead of outside), their screw on caps or threaded top ends are the appropriate distance apart. You then have a spark gap negative center grid to attract the D ions.
Please pardon me if somebody else has already posted this idea. I had been considering using spark plugs as feed-throughs for my first demo fusor. Reading the GCE post caught my fancy.
Best Regards