goldenreference low voltage power supply
I'm happy to report that the goldenreference low voltage dual
power supply works as designed, and tests less than 1 microvolt
of noise. Going to have to take it to work and put it in a screen
room to really measure the noise.
http://gilmore.chem.northwestern.edu/goldenreferencedual.jpg
however there is one silkscreen error seen by the extra + near the
47uf cap on the right side. I will update the files shortly.
All 4 of the 47uf caps need to have their plus sides pointing to the
Having worked in calibrating multimeters, among other things, your problem could be not enough resolution in the meter. Solution: Use the voltage range closest to the voltage being measured without going under the voltage being measured, or get a multimeter with a greater number of digits and the accuracy to match. To measure 15.00V with only 4 digit resolution gives only 2 decimal places. If the voltage is exactly 15.00V, the the reading could be anything from 14.99V to 15.01V depending on th
