Kim:
You are correct. Years ago, the radiators and heater cores were brass or
copper. They could be repaired by soldering if the damage was not too extensive.
These days, the manufacturers are more concerned with less weight and cost, so
they use an aluminum core with plastic for the side tanks that are crimped on
with a rubber gasket in between.
Plastic would not conduct the heat from the anti freeze into the air passing
around/through it.
Don N8ECH
--------------------------------------------
On Tue, 4/24/18, Kim Elmore <cw_de_n5op@sbcglobal.net> wrote:
Subject: Re: [Amps] water purity/conductivity in water cooled, tube, >
amplifiers
To: "Randy" <randy@verizon.net>
Cc: amps@contesting.com
Date: Tuesday, April 24, 2018, 9:58 AM
I don’t think this is correct.
Every one I’ve ever seen is now aluminum.
Kim N5OP
"People that make music together cannot be
enemies, at least as long as the music lasts." -- Paul
Hindemith
> On Apr 23,
2018, at 22:33, Randy <randy@verizon.net>
wrote:
>
>> On
4/23/2018 9:28 AM, amps-request@contesting.com
wrote:
>>
----------------------------------------------------------------------
>>
>>
>> I know that really pure water is
actually corrosive and will do it's
>> best to gain ions in order to get to
some natural level of
>>
minerals/contaminants.??? I built the coolers out of several
pieces of
>> brass and hard silver
brazed it all together.? I know the electrical
>> current will cause an etching or
eroding effect of the materials in the
>> cooler, but I used what I had.?? At
this point, I have no idea how often
>> I will changing? out the water.? Could
be after only 10 hours of use, or
>>
it may be 100 hours and the cooler may rot out in no
time.
>>
>>
>> ------------------------------
>>
>>
> Just wondering out loud... I'd bet
some cars have either all-plastic radiators, or, maybe
plastic heater cores for the A/C. Maybe that would remove
the issues of metal ions from the heat-exchanger.
Undoubtedly less efficient at removing heat from the water
than metal, but size cures a lot of ills.
>
>
> Randy
> KZ4RV
>
>
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