[Amps] Vegetable oil dummy load

[m.ford]

----- Original Message ----- 
From: "Larry Carman" <lncarman at swbell.net>
To: <VE6TR at telus.net>
Cc: <amps at contesting.com>
Sent: Tuesday, February 28, 2006 6:10 PM
Subject: Re: [Amps] Vegetable oil dummy load


> 
> According to Vectronics, motor oil does not have a sufficiently high
> vaporizing temperature and will cause excessive vapor. 
> 
> I found the following quote on eHam:
> Motor oil is not recommended (at least not for long term use,) as the
> volatility and flash point is often lower than mineral oil, and the
> additives will corrode the structure of the resistor used in the dummy load.
> (ARRL Handbook, 1988, CHapter 34, page 22-23.)
> 
> I was once told that there was a brand of motor oil without additives that 
> Worked very well in dummy loads. I have no idea what brand it was. 
> 
I'm just guessing here, but I would not be surprised if it were Marvel Mystery Oil.

Mike k1ern



> Regards,
> Larry N5BIP
>