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