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#281 |
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diyAudio Member
Join Date: Dec 2003
Location: qld
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hi all,
this is my effort, aussieamps av400 boards, homemade speaker protection, fischer heatsinks (10 kg each!) rifa 47000 uF caps. whole thing weighs 45 kg it's about to be upgraded with av800 boards that i've had for some time. |
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#282 |
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diyAudio Member
Join Date: Dec 2003
Location: qld
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internal view
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#283 |
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diyAudio Member
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Hi, Some piccys of my latest amp.
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#284 |
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diyAudio Member
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The rear panel, just below mains lead is a TOSLINK connector, used to send signal to a remote mains switching unit to power up source components.
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#285 |
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diyAudio Member
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Internal view, the circuit design is one of my own. Anyone recognize the metalwork of the power amp modules ?
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#286 |
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diyAudio Member
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Each amp module has D.C. protection P.C.B. mounted on right side with local filtering on left P.C.B.
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#287 |
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diyAudio Member
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The PreAmp. All input switching done at sockets with MOSFET,s in series shunt arrangement. Full remote control included Volume and input selection. All PC.B.,s hand drawn (took hours) just getting to grips with a C.A.D. Package so feel another project coming on
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#288 |
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diyAudio Member
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The power amp, not shown is 0.22 ohm series output resistor.
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#289 |
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diyAudio Member
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A poor pic part of preamp, the board at the bottom is a "hardware solution" to what should be done in software. The remote decoder is under the white plastic cover and I had to buy this in. Fully learning it will accept any "common" r/c commands, my pcb decodes the outputs and translates levels to operate fet switches.
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#290 |
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diyAudio Member
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All ready to go, an audience with Beethoven and the Takacs Quartet await.
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