Cantenna Fluid? Need help finding some.

[Joseph Allis]

I use vegatable oil in mine. I've heard good and bad about it, but it has 
always worked well for me. I load an SB-220 into it and I have since 1982 
without incident. I usually tune for about 10 seconds and the load doesn't 
even get warm. In any event, a cheap alternative to transformer oil.
Joe K4SH
----- Original Message ----- 
From: "Robert Myers" <rsmyers at ROGERS.COM>
To: <HEATH at LISTSERV.TEMPE.GOV>
Sent: Friday, April 15, 2005 11:00 PM
Subject: [HEATH-TEMPE] Cantenna Fluid? Need help finding some.


> 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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