[Boatanchors] Question

Gary Pewitt n9zsv at magtel.com
Tue Aug 5 20:18:39 EDT 2008


The spark plug method is used on balanced lines not co-ax.  There are 
plenty of co-ax arrestors on the market but people who use twin lead 
or open line have to make their own.  It's good to find out about the 
lawn mower plugs.
You would circle the top of the plug with the open line or a striped 
section of twin lead and the bottom of the plug would be threaded 
into a copper plate which was grounded.  Some plugs have a top fitted 
to a threaded stem which could be removed and a  circular lug placed 
over the threaded stem and a nut and washer installed.  Then the lug 
would be crimped to the open line.  Of course you would need two 
plugs.  I wonder if several plugs for each line starting with a wide 
gap and narrowing to the smallest gap that would take the power would 
be a better idea?  I think you would need to cover all this to 
prevent rain and snow from shorting it out.
73  Gary



At 12:15 AM 8/5/2008, WA5CAB at cs.com wrote:
>Excellent point.  Although non-resistor Champion N-8 and N-14Y are still
>available for the 50's through 70's 4-cylinder Land Rover 
>engines.  Lawn mower
>spark plugs are also generally shorter as well.  But how do you 
>connect the coax
>center conductor to the electrode?  And without disturbing the ground
>electrode for the spark gap?
>
>In a message dated 8/4/2008 11:47:58 PM Central Daylight Time, we0h at yahoo.com
>writes:
> > The mower sparkplugs are likely non-resistor plugs verses the resistor
> > plugs run in automotive motors.
> >
> > Mike
> > WE0H
> >
> >
> >
> > Gary Pewitt wrote:
> > >Dan, what's the advantage of using -lawn mower- spark plugs rather
> > >than automotive spark plugs?  I intend to do more or less what you
> > >have described for my balanced lines.   Thanks and 73  Gary  N9ZSV
> > _______________________________________________
>
>Robert & Susan Downs - Houston
>wa5cab dot com (Web Store)
>MVPA 9480
>_______________________________________________

Gary Pewitt  N9ZSV   garypewitt at centurytel.net  479 675 4376
1500 French Prairie Rd. Booneville, Arkansas  72927
Sturgeon's Law "Ninety percent of everything is crap."
Pewitt's Law: But it's that other 10% that makes life worth living."



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