[Amps] Silicone hose from Flex Technologies

[Jim Hoge]

Point taken. With the exception of a chimney pulling double duty as an anode resonator such as in K5GW's 432 amp, the chimney material shouldn't be conductive or rf absorbant.


________________________________
 From: Paul  Hewitt <wd7s at earthlink.net>
To: Jim Hoge <knowkode at verizon.net> 
Sent: Friday, July 20, 2012 3:19 PM
Subject: Re: [Amps] Silicone hose from Flex Technologies
 
Exactly right Jim, it should not absorb RF radiation.  If it does get it out of the tank compartment, as well as all ferrous materials.  I think you missed the point.
73, Paul

PAUL HEWITT
WD7S PRODUCTIONS
QRO HOMEBREW COMPONENTS
http://home.earthlink.net/~wd7s



----- Original Message ----- From: "Jim Hoge" <knowkode at verizon.net>
To: "amp reflector" <amps at contesting.com>
Sent: Friday, July 20, 2012 10:43 AM
Subject: Re: [Amps] Silicone hose from Flex Technologies


The purpose of a chimney is not to absorb RF radiation but to direct airflow. The only specification that really matters is whether or not it will survive the ambient temperature of its environment. It does not need to be a thermal insulator. (Think glass chimneys fore 3-500 tubes.) I think a conventional oven would be a better instrument with which to test the temperature survivability of any given chimney material.

73,
Jim W5QM



________________________________
From: Paul  Hewitt <wd7s at earthlink.net>
To: Amps Reflector <amps at contesting.com>
Sent: Friday, July 20, 2012 12:19 PM
Subject: [Amps] Silicone hose from Flex Technologies

Greetings
A few months ago someone posted the link for this company after using some
of their silicone hose for a chimney(s). I bought some of the 2.5 inch hose
for a pair of 3cx800's I have. It is a polyester reinforced product.
Unfortunately the hose did not survive the microwave test I gave it. Two
minutes in a 1KW microwave gets it so hot you can't touch it for ten
minutes. It might be OK for HF but above that I would be cautious. For
what it's worth before you spend the money.

Paul


PAUL HEWITT
WD7S PRODUCTIONS
QRO HOMEBREW COMPONENTS
http://home.earthlink.net/~wd7s




_______________________________________________
Amps mailing list
Amps at contesting.com
http://lists.contesting.com/mailman/listinfo/amps
_______________________________________________
Amps mailing list
Amps at contesting.com
http://lists.contesting.com/mailman/listinfo/amps