[Boatanchors] Should dummy load oil ever need to be changed?
Jim
jbrannig at verizon.net
Sat Aug 25 08:28:08 EDT 2012
My Cantenna is at least 35 years old and it works very well. It is filled
with Humble Oil transformer oil and show no sign of rust.
Jim
> Paint cans rust out from the outside, then they leak making a hazard waste
> condition.
>
> I have seen at least 4 leaky Heath paint cans dummy loads. Why take a
> chance? New dummy loads are not expensive, surplus even cheaper.
>
> 73, John Dilks, K2TQN
>
>
> -.-
>
> ----- Original Message -----
> From: "Rob Atkinson" <ranchorobbo at gmail.com>
> To: oldradio at comcast.net
> Cc: "Ed H" <eh54 at sbcglobal.net>, Boatanchors at mailman.qth.net
> Sent: Saturday, August 25, 2012 6:33:54 AM
> Subject: Re: [Boatanchors] Should dummy load oil ever need to be changed?
>
> I disagree. PCB oil is only a problem if it leaks out and you come
> into contact with it. The fear about PCB is similar to the fear about
> lead paint and asbestos. All only bad if you rub yourself with it or
> ingest it. There are still PCB caps in use in industry--they just put
> warning stickers on the fronts of the cabinets saying that oil caps
> inside have PCBs, and drive on. Besides, it is not certain the oil
> has PCBs. If the oil in the cantenna is clear and clean you may as
> well use it and add some mineral oil to it if the resistor is not
> submerged. Then you don't have the hassle of disposal. As a
> precaution against the can leaking, go to a supermarket and get a
> cheap disposable aluminum turkey pan and set the Cantenna in it.
>
> Now, having written all that, let me also add that for AM the Cantenna
> is inadequate in my opinion, except for brief test transmissions.
> That sucker will get hot if you dump a carrier into it for more than a
> minute or two, especially over 300 watts. Use it, but keep looking
> for something better.
>
> 73
>
> Rob
> K5UJ
>
> On Sat, Aug 25, 2012 at 4:25 AM, <oldradio at comcast.net> wrote:
>> Ed,
>>
>> The oil is probably transformer oil and has PCB's in it. If so, leave it
>> alone and dispose of it (the cantenna) at your local recycle center. Do
>> not get any on your skin or breathe any fumes.
>>
>> 73, John Dilks, K2TQN
>>
>>
>> -.-
>>
>> ----- Original Message -----
>
>>
>> I have a cantenna that is 35+ years old. It hasn't been used lately. It
>> seems to be a little less full than it was when bought new. I purchased
>> the oil from the Heathkit store as well. I assume the oil is simple
>> mineral oil as it was clear and approximately 10 to 20 weight viscosity.
>> I used it moderately for 1kw+ tune up for 20 years before I put it in
>> storage. Now I plan to use it for 150 to 1kw AM and cw tune up and
>> testing. Should I change the oil?
>> Ed-kv5i
> ______________________________________________________________
> Boatanchors mailing list
> Home: http://mailman.qth.net/mailman/listinfo/boatanchors
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Boatanchors at mailman.qth.net
>
> List Administrator: Duane Fischer, W8DBF
> ** For Assistance: dfischer at usol.com **
>
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
More information about the Boatanchors
mailing list