Hi Jose.

Concluding.

Moisture and aging are primary reasons for resistor value change.
 ( conditions components were kept in storage )
Temperature is the second I believe. ( it changes with it )
Human body resistance is the third :) ( finger-body-finger )
Meter battery, zero-in, calibration and precision are the last.

WBR Dmitry.


> Anyhow, joking aside, another person indicated that it may be moisture,
> and that baking-out the moisture resolved their problem, so that may be
> a good possibility.

> Another person suggested temperature, and I know that some watch makers
> calibrate their crystals for body temp instead of room temp, so it may
> be a possibility that the resistors may indeed fall better in range
> when warmed up (warm-n-toasty, used in a valid circuit).

To good to be true :) I don't think anybody design components pre-adjusted
to get to normal values after one run of solder wave machine or reflow
oven :) Too much complications it implies.
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