Hi Steve, I would be very happy to empty the beer barrels of there
contents! Seriously though there is a company in the UK that make
filters out of barrels but they only work down to about 68MHz due to
the lengh. I have a set and they would make an excellent 70MHz duplexer
but we don't have 4M repeaters here!
As far as oxygen cylinders go.....I'm not sure what they are made of
but I know the carbon dioxide ones used in fire extinguisher systems
are made from cast iron and are lined with concrete.
Cheers Dave UZN
--- In [email protected], "Steven Samuel Bosshard
\(NU5D\)" <[EMAIL PROTECTED]> wrote:
>
> Jack, I believe the British Beer Kegs lack sufficient temperature
stability and dynamic range because Budweiser is best at around 34 to
36 deg F, and I understand Guinness never gets much below room
temperature, hence the lack of dynamic range may pose an impediment.
Maybe an oxygen cylinder used in welding might have a better l/c
(length / circumference) ratio? 73, Steve NU5D
>
