Cantenna Fluid? Need help finding some.

[Robert Myers]

Hi,

I have purchased a nice Heathkit "Cantenna" that is empty.  What is the
accepted standard for fluid to put into this thing?  I may hit 500 Watts
tops (if that) for up to a couple minutes during the tuning-up phase of
with some rigs, but usually I use it without any linear to load my
SB-401 transmitter.  So it's more like 100 W maximum.  Im really not
searching for an 'ultimate fluid,' I just want something highly heat
conductive, not electrically conductive (of course), and safe according
to those amateurs who have actually used it.

I have heard using mineral oil; another said they use automobile
transmission fluid.  Does mineral oil ever 'go bad,' or I am just
thinking of cooking oil?  I want something I can put in the and never
change it.

I ask because I am assuming 'real transformer oil' (ideal, I suppose)
might be hard to find --- or is it?  And does the 'real' stuff contain
any PCB's anymore?  Finally where would you get the 'real' stuff anyway
--- if there is a safe version of that?

Thanks,
--- Rob Myers
VE3 JQL

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