In the big Eimac water cooled tubes, what and how did they use liquid
cooling?
Joe WB9SBD
Sig
The Original Rolling Ball Clock
Idle Tyme
Idle-Tyme.com
http://www.idle-tyme.com
On 3/7/2017 3:43 AM, Roger (K8RI) wrote:
Sorry, but that is not true. I too used to think of distilled water
as being neutral, but, "pure, distilled water is highly corrosive and
will suck up metallic ions like mad.
Water is one of the best mediums for heat transfer, however, tap water
would work well in a SS amp with the heat sink/spreader at chassis
ground potential. Tap water would not wok in a tupe amp where it has
to cool the anode of a tube at a high potential.
I worked with this stuff (DI & Distilled) for close to 20 years.
73
Roger (K8RI)
On 3/6/2017 10:12 AM, Al Kozakiewicz wrote:
Distilled water is deionized by definition. Ions have a much lower
vapor pressure than H2O and thus aren't boiled off in the process.
Distillation is a common way of producing deionized water.
Water is not "highly corrosive". It has a pH of 7 - completely
neutral. If the water being distilled has corrosive contaminates
whose vapor pressure is greater than water, then the distillate will
have them too, but since the VP of water is already higher than the
mineral salts that are the typical corrosives, the most likely
contaminates are organic.
This anecdote has some more complicated explanation than "distilled
water is highly corrosive".
Al
AB2ZY
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