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Old 30th January 2008, 01:57 AM   #281
mr l is offline mr l  Australia
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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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Old 30th January 2008, 01:58 AM   #282
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internal view
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Old 2nd February 2008, 07:20 AM   #283
Mooly is offline Mooly  United Kingdom
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Default My latest amplifier.

Hi, Some piccys of my latest amp.
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Old 2nd February 2008, 07:21 AM   #284
Mooly is offline Mooly  United Kingdom
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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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Old 2nd February 2008, 07:24 AM   #285
Mooly is offline Mooly  United Kingdom
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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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Old 2nd February 2008, 07:26 AM   #286
Mooly is offline Mooly  United Kingdom
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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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Old 2nd February 2008, 07:29 AM   #287
Mooly is offline Mooly  United Kingdom
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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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Old 2nd February 2008, 07:30 AM   #288
Mooly is offline Mooly  United Kingdom
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The power amp, not shown is 0.22 ohm series output resistor.
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Old 2nd February 2008, 07:36 AM   #289
Mooly is offline Mooly  United Kingdom
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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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Old 2nd February 2008, 07:39 AM   #290
Mooly is offline Mooly  United Kingdom
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All ready to go, an audience with Beethoven and the Takacs Quartet await.
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