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Re: Can 833's be...................



Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>" <FutureT-at-aol-dot-com>

In a message dated 11/16/01 7:18:47 PM Eastern Standard Time, 
tesla-at-pupman-dot-com writes:

> 
>  I wonder if 833A's can be run horizontally? I have to ask, because 833 
> sockets
>  are a little rougher to come by then the actual tube itself:^) 

Richard,

Yes, the tube can be run horizontally, but ONLY if the terminals are
in a vertical position.   I like to run these tubes vertically.  I first cut
a piece of wood 3/4" thick x 4" square.  Then I drill two holes into it,
so the tube bottom pins fit into it LOOSELY.  Now the tube will
stand up in this base.  Next, I take some
sheet metal such as copper or aluminum, and I cut it about 3/8" x 
3" long.  Next I bend over the end about 3/8",  next i use strong 
pliers to bend the bent end, so it fits the curve of the tube pin.  Next,
I use a tiny hose clamp to clamp the metal to the pin.  I do this
for both bottom pins.  When both clamps are attached to the
pins, just just place the tube pins into the piece of wood.  Keep
the clamps near the top of the bottom pins, so the pins are long
enough to reach deep into the wood.  I drill small holes in the flat
end of the metal, and use a small screw and nut to connect the
wires.  This method is very crude of course, but I've used it on all
my 833A projects, including the setup which gave 38" sparks.  

>  am almost ready to fire up my tube coil, however instead of using a piece 
of 
> 6"
>  OD for the primary form I used the only thing that I had laying around 
which
>  was a piece of 4." 
>  I wonder if I will get a flashover. 

Well if the primary is 4" diameter, then the secondary should be only
about 2" diameter, either that or you can raise the secondary some.
It may flashover if too much power is used.  I prefer a 6" diameter
primary. 

>  Also, I already have one 833A and am
>  wanting to see how it will run all by itself before I get the other 833s. (
> The
>  truth is, I WANT TO SEE SOME PULSED DC NOW!) Wonder if it is good on the 
> tube. That is, using one tube instead of two. 

I often use just one tube.  One tube can give about a 19" to 23"
spark depending on the overall coil design. 

> Yes, yes, I know it is probably a
>  foolish question, but this is my first tube coil, so I should be allowed at
>  least a few of them for this project. Thanks list> 

Don't let the tube plate get too bright orange during your tests.

John,

>  
>                                            Richard