[Amps] water purity/conductivity in water cooled, tube, > amplifiers
Roger (K8RI)
k8ri at rogerhalstead.com
Fri May 4 13:34:57 EDT 2018
Just think, all that's between your auto-transmission oil and the engine
coolant is some very thin aluminum bent into complex shapes inside the
intercooler
They do fail!
73, Roger (K8RI)
On 4/28/2018 4:22 PM, Donald Fox via Amps wrote:
> 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 at sbcglobal.net> wrote:
>
> Subject: Re: [Amps] water purity/conductivity in water cooled, tube, > amplifiers
> To: "Randy" <randy at verizon.net>
> Cc: amps at 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 at verizon.net>
> wrote:
> >
> >> On
> 4/23/2018 9:28 AM, amps-request at 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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--
Roger (K8RI)
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