Date: Fri, 13 Apr 2018 21:43:33 -0400
From: Steve Bookout <steve@nr4m.com>
To: amps@contesting.com
Subject: [Amps] more on water cooling an amp
<All,
<I just realized that I could use my Hi-pot tester to test things and
<help set it up.
<Steve
## Paul, W9AC and also John Lyles, K5PRO have a lot of experience with
water cooled tubes.
## Use real distilled water. I would not use de-ionized water myself, its
ion depleted.
I tested distilled water bought from local grocery store vs tap water...
with just my fluke 87A DVM,
and probes inserted into a capful of distilled water, then tap water. The
difference was like apples and oranges.
One extreme to the other. Blatantly obvious.
# be careful though, Paul said he got some...distilled water from
wallgreens, and upon testing, it was the same resistance as plane jane
tap water. IE: wallgreens was selling you a bill of goods.
## Paul had the..when to change out the distilled water procedure.... down to
a fine art. When the resistance fell below a certain threshold,
and too many contaminants in the loop, time to change out.
## Distilled water in 1 gallon plastic jugs is cheap.. just make sure its the
real deal.
## Flush out your new aluminum auto tranny radiator with tap water with a
garden hose for several mins, then reverse directions
on the rad, and do it again for a few minutes. Then hit it with dry air, or
compressed air to get any residual moisture out. Plenty of
aluminum radiators both for Heat exchangers for super chargers, eng rads,
automatic tranny coolers, eng oil coolers, AC rads etc,
that have issues, caused by residual aluminum shavings and gunk inside the
rad, during the manufacturing process.
Jim VE7RF
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