My small fleet of AT3032s has become increasingly unreliable after several =
years of use. Typically one of a set of four will start popping when they'r=
e put out in the cold at night or in the early morning.
I've tested them by putting them into a freezer and listening for pops. In =
my recent test run six of nine capsules started popping within 20-30 minute=
s. Admittedly this test may be extreme, but I'm trying to accelerate the ef=
fect of internal condensation.
My attempt to save them is to try storing them with desiccant -- perhaps ov=
er the years moisture has diffused into the capsules, and perhaps a good lo=
ng drying-out will restore them.
I got a set of little ventilated plastic boxes containing color-indicating =
desiccant beads. I activated the desiccant modules in a food dryer for a fe=
w hours at around 160 degrees F. They turned blue.
I've packed each mic in a quart ziploc bag with a desiccant box. They've be=
en that way several days now, and I'm experimenting with measuring the humi=
dity in the bags by sealing in my Kestrel 3000 weather station and taking a=
reading a couple of hours later. The minimum humidity I observe is around =
15%. I was expecting it to go lower.
Has anybody else tried something like this?
-Dan
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