[Amps] GS-35B Tubes Glow In The Dark

[Tony King - W4ZT]

That's an intriguing idea Hal. I can try it and see if it has any effect 
but it will be at least Sunday before it gets done (getting ready for 
the Dalton, GA hamfest now).  Though there might be something on the 
outside causing a difference, it appears that it's all inside. I thought 
that ceramic from different batches could cause the difference in color.

I'll have to find one of my friends with a video camera to try that 
experiment. I don't have anything here that will do. It's a good idea 
though and might shed some light (no pun intended) on the heat issue 
with the ceramic.

Not that any of this will change the way the tubes work... they work 
fine... what a value for a legal limit amp with headroom... but it's 
just enough weird science to keep tugging at the brain.  I appreciate 
all the input from everyone.

73, Tony W4ZT


HAROLD B MANDEL wrote:
> Dear Tony,
> 
> What do you think the results would be if you removed the tubes
> and very thoroughly cleaned them with hot water and soap first
> and a finish with isopropanol, all handled with new clean
> rubber gloves?
> 
> While the ceramic doping theory is popular I would
> wonder about contamination, but why is one device green and the other
> blue? Different ceramic compositions might be the answer.
> 
> Next, use an ordinary video camera and watch a color monitor
> hooked to the video output. The reason I suggest this is that
> an IR controller shows up as a very visible blue/white light
> after processing through a CCD. I just wonder if there are
> wavelengths of light you are NOT seeing, either with the
> naked eye or your DSLR.
> 
> Hal 
> W4HBM
> On Fri, 24 Feb 2006 00:58:32 -0500 Tony King - W4ZT <amps080605 at w4zt.com>
> writes:
>> both tubes in it.  During the testing after the tube swap I noticed 
>> that 
>> by looking straight down through the anode cooler I could see a 
>> distinct 
>> glow. Interestingly enough, one tube was glowing BLUE and the other 
>> tube 
>> was glowing GREEN!
>>
>>> <http://tester.gs35b.com> 
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