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#1 |
diyAudio Member
Join Date: Jun 2003
Location: Bristol
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Here are some step by step photos of my new dual mono block 500W PA amplifier.
1: The case constructed with the transformers bolted in: |
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#2 |
diyAudio Member
Join Date: Jun 2003
Location: Bristol
|
2:
Most of the mains and power wiring done: |
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#3 |
diyAudio Member
Join Date: Jun 2003
Location: Bristol
|
3:
The cap bank and the input output boards on the second level. Balenced line receiver and Vellamen speaker protection board: |
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#4 |
diyAudio Member
Join Date: Jun 2003
Location: Bristol
|
4:
The second level installed in the chassis with the power wiring coming up through: |
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#5 |
diyAudio Member
Join Date: Jun 2003
Location: Bristol
|
5:
The two 500w power amps installed on the heatsinks above the res caps. Amp are from Silicon chip magazine and board layout was posted by HugoBross: |
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#6 |
diyAudio Member
Join Date: Jun 2003
Location: Bristol
|
6:
Closeup of amp boards and power supply caps: |
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#7 |
diyAudio Member
Join Date: Jun 2003
Location: Bristol
|
7:
Back of case with XLR inputs and binding post outputs: |
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#8 |
diyAudio Member
Join Date: Jun 2003
Location: Bristol
|
8:
Case complete, this is fairly heavy. It has two 1KVA transformers in the bottom. The base plate is 5mm Alu and the middle plate is 5mm Alu every thing else is 2mm Alu. |
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#9 |
Banned
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Wonder how many people it takes to move that beast. : O )
Is that a blower fan in the heat sink's? |
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#10 |
diyAudio Member
Join Date: Jun 2003
Location: Bristol
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It takes two people, I have carried it mysely but only about 20 metres. Each heatsink has its own ducted fan with its own power supply in the bottom, should keep it cool don't you think??
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