321
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*Changed the 35.7k resistor in the voltage reference to 130k in order to increase the current on each transistor leg.
*Changed the 35.7k resistor in the voltage reference to 130k in order to increase the current on each transistor leg.
*The voltage regulator for AMPREF had the wrong pin out in our drawings. We rotated it so that VCC_VRef moved to where AMPREF was and a wire attaches from AMPREF to where VCC_VRef was.
*The voltage regulator for AMPREF had the wrong pin out in our drawings. We rotated it so that VCC_VRef moved to where AMPREF was and a wire attaches from AMPREF to where VCC_VRef was.
*This board has been populated by SiPMs.
= Board 2 =
= Board 2 =
*Changed the 35.7k resistor in the voltage reference to 130k in order to increase the current on each transistor leg.
*Changed the 35.7k resistor in the voltage reference to 130k in order to increase the current on each transistor leg.
*Changed C2 from 10nF to 1nF (this was later changed back to 10nF)
*Changed C2 from 10nF to 1nF (this was later changed back to 10nF)
*This board has been populated by SiPMs.