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3rd July 2005, 04:34 PM
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#1 |
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diyAudio Member
Join Date: Aug 2004
Location: Illinois
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Balanced Input Circuit Board
This circuit board enables balanced inputs to an unbalanced input amplifier.
It came from a working Hafler PRO 1200 amplifier. You can see it has XLR and 1/4" input jacks. It has its own power supply that takes ~50VDC from the amp's rails and converts it to the ±10VDC to operate its circuit. Details about this circuit card, board layout, and schematic can be found on pages 9 and 10 here: http://hafler.com/techsupport/pdf/PRO1200_amp_man.pdf How about $25 + postage? Let me know of your interest. Thanks |
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3rd July 2005, 04:39 PM
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#2 |
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diyAudio Member
Join Date: Aug 2004
Location: Illinois
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Woops. The info is on pages 10 and 11 of the manual:
http://hafler.com/techsupport/pdf/PRO1200_amp_man.pdf Also, you can see the circuit board has level controls attached. |
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