Re: Jellys DC / AC

To: neon-l@netcom.com
Subject: Re: Jellys DC / AC
From: marcus@ttphysik.uni-duisburg.de
Date: Tue, 23 Apr 1996 08:55:23 +0100 (MESZ)
In-Reply-To: <Pine.SUN.3.93.960420114832.1783A-100000@eskimo.com> from "William Beaty" at Apr 20, 96 12:14:54 pm
Reply-To: neon-l@netcom.com
Sender: owner-neon-l@netcom.com



William Beaty wrote:
> 
> Hi Marcus!  The first time I saw jellybeans was in a DC Geissler(sp?)
> tube.  

Hi Wiliam, 

Molecular gases - electrons on spiral paths by magnetic field 
see my mail to Howie.


> 
> I'm not totally familiar with sign-tube power supplies.  Is it common for
> jellybeans NOT to appear in sign tubes run at DC? 

Never seen jellys in noble gases when applying filtered or unfiltered DC.
(made some power supplies for DC neon.)
 
> 
> Here's something I haven't tried: if the frequency of the AC HV supply is
> varied, does the spacing of the jellybeans change significantly?  If what
> you say is true, then changing the supply frequency should change the
> spacing, and by picking the correct frequency, any size of "jellybean"
> could be created. 
Have seen only ONE or TWO dark spaces often when using electronic transfos. 

Bill Parker is THE PLASMA MAN, he could contribute much to the list. 

Best regards,

Marcus Thielen
email: marcus@ttphysik.uni-duisburg.de

References:

Re: Jelly Beans ????

From: William Beaty <billb@eskimo.com>