[Amps] nylons

[David Kirkby]

John Irwin wrote:

>dudes
> 
>a large ace hardware store opened here last week , One block away.  I have noticed a lot of nylon items that look a lot like the ceramic standoff insulators, they come with a hole in the center,and some are taped for 6-32  or other simular sizes.  lenght every 1/8 inch or so,diameter 1/4 to 1/2 inch
> 
>How does nylon act in rf?    Like in a amplifier as used to support variable capacitors or inductors? Next to the plate choke.
> 
>Anyone put some in the pi coil and see if it holds up. or does it go up in smoke?
> 
>thanks
>john kb9tc
>

One other thing I forgot to add is that I have here some Ross HyperSPARC 
CPUs,  which were from a Sun workstation. (Sun did not make this CPU, 
but a 3rd party did). I know this particular machine had been run 24/7 
for many years, and never broke down.

The heat sinks were attached using some sort of black plastic screws. 
When I moved the computer, several snapped. The material (probably a 
nylon) had become very brittle indeed. But these HyperSPARC processors 
were known to run very hot and were subjected to this for many years 
indeed. So a short-term test does not give the whole story.


-- 
Dr. David Kirkby, 
G8WRB

Please check out http://www.g8wrb.org/ 
of if you live in Essex http://www.southminster-branch-line.org.uk/