Re: Valves

• To: tesla-at-pupman-dot-com
• Subject: Re: Valves
• From: "Bill the arcstarter" <arcstarter-at-hotmail-dot-com> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)
• Date: Sun, 26 Sep 1999 07:24:36 -0600
• Approved: twftesla-at-uswest-dot-net
• Delivered-To: fixup-tesla-at-pupman-dot-com-at-fixme

Mark Finnis <mefinnis-at-medicine.adelaide.edu.au> wrote:

>>Original Poster: "Jim Lux" <jimlux-at-jpl.nasa.gov>
>>
>>Except that a thyratron really is a "latching" kind of tube (think of it 
>>as
>>a SCR) as opposed to an amplifier (like a triode or tetrode).  I believe
>>that Richard Hull did some stuff using thyratrons as a replacement for the
>>spark gap though...
>
>My limited knowledge tells me this means it "stays switched-on" once fired, 
>until the forward current source disappears that is.
>
>How would this work with our RF cap oscillations ?

These tubes have a deionization time.  If the current stays zero for roughly 
the deionization time, then the tube will switch to a nonconducting state.

I would think that the period between zero crossings for a tesla coil LC 
oscillation would be faster than the deion time, and the tube would 
therefore stay on for the entire oscillation envelope.

But I could be wrong.  Depends on the tube.  I know the H filled ones are 
faster than mercury vapor tubes, but more than that I don't know.

-Bill

______________________________________________________
Get Your Private, Free Email at http://www.hotmail-dot-com

• Prev: homewound TC power supply transformers?
• Next: Re: Printed circuits caps
• Index(es):
  • Main
  • Thread