For sale Soekris dam 1021-02 with Nurmunds input board for spdif, optical, usb input and rpi board input.
Dac is modified with almost all mods that are suggested:
Transistor mod, capacitor mod, disable opamp output stage, just raw output is for use. Optimized power supply, 2x5v Kubota preregulator for shift levels, and lt1085 5v preregulator followed by 3,3V lt3042 and TPS7a4501 for fast transient 1.2V lines.
Dac is completed and perfectly working, just add 2x6-9V transformer for +-5V kubota regulator and 2x6v transformer for other 2 lines.
Boards:
Soekris dam 1021-02%
Nurmundss input board with input selector
Diyinhk usb board
Power supply board with Kubota and 2 other preregulators
All together for 200€ plus shipping....FREE GIFT RASPBERRY PI!!!
Dac is modified with almost all mods that are suggested:
Transistor mod, capacitor mod, disable opamp output stage, just raw output is for use. Optimized power supply, 2x5v Kubota preregulator for shift levels, and lt1085 5v preregulator followed by 3,3V lt3042 and TPS7a4501 for fast transient 1.2V lines.
Dac is completed and perfectly working, just add 2x6-9V transformer for +-5V kubota regulator and 2x6v transformer for other 2 lines.
Boards:
Soekris dam 1021-02%
Nurmundss input board with input selector
Diyinhk usb board
Power supply board with Kubota and 2 other preregulators
All together for 200€ plus shipping....FREE GIFT RASPBERRY PI!!!
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