Final Adjustments; Adjust The Constant Current Sources - Raleigh Audio Premium Extreme RAKK dac Assembly Manual

Final Adjustments
Adjust the Constant Current Sources
1. Measure the resistance across resistor R29 and adjust potentiometer R30 so that the
resistance across R29 is 25Ω.
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2. Measure the resistance across resistor R33 and adjust potentiometer R34 so that the
resistance across R33 is 25Ω.
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3. Measure the resistance across resistor R37 and adjust potentiometer R38 so that the
resistance across R37 is 100Ω.
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4. Measure the resistance across resistor R42 and adjust potentiometer R43 so that the
resistance across R42 is 100Ω.
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5. Measure the resistance across resistor R47 and adjust potentiometer R48 so that the
resistance across R47 is 100Ω.
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6. Measure the resistance across resistor R52 and adjust potentiometer R53 so that the
resistance across R52 is 100Ω.
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7. Install a 6N6P tube in locations V1 and V2.
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8. Power on the Active Output and allow it to warm up for about one minute.
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