Re: Tubing, how bizarre they are!

• To: tesla-at-pupman-dot-com
• Subject: Re: Tubing, how bizarre they are!
• From: FutureT-at-aol-dot-com
• Date: Sat, 15 Feb 1997 13:51:18 -0500 (EST)
• Subscriber: FutureT-at-aol-dot-com Sat Feb 15 15:45:38 1997

snip
>> "I assume you're using resistors to feed the
>> screen and suppressor grids."
 
>No, I tied them together, and used them as in a Triode configuration. Is
> this potentially disasterous? What would the ideal voltage be, if I used
> a dropping resister from the plate supply?
 
>Thanks,
 
 >David Trimmell
  >>

David,

The triode config. is fine but may limit the spark length.   In a test I did,
I installed an 803 into the same schematic design TC that I sent you, and
obtained a 5 to 6" spark, by connecting a 15k resistor from the plate supply
to the screen grid, and then connecting a 45k resistor from the screen grid
to the suppressor grid.  It was just a quick test and I didn't measure any
voltages or try different resistor values, maybe someone on the list has done
more in this area?

Happy and spark-blasting tube coiling,

John Freau

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