Finished compact p3a amp/chassis today, few pictures. - diyAudio
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Old 19th March 2005, 11:26 PM   #1
Jean is offline Jean  United States
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Default Finished compact p3a amp/chassis today, few pictures.

Got myself a table saw finally, and with the right blade cutting aluminum is so easy ! I had two extra p3a boards, so I decided to make a compact case for them. Heatsinks I got from a local electronics shop, they only had 4 and they were already pre drilled/tapped for the most part.

PSU is a single 250va avel dual 25volt transformer, bridge and 12500 uf caps from ApexJr.
Click the image to open in full size.

For better view, shot of internals. I pulled the AC line jack from a broken psu, it's 6amp rated with emi filter.
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Spare rca and speaker posts from partsexpress.
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Bare aluminum finish, it was covered in stick-on film that I pulled off once I was done with drilling and cutting.

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Old 20th March 2005, 12:48 AM   #2
ble0t is offline ble0t  United States
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Looks very nice!

What exactly are the dimensions?
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Old 22nd March 2005, 02:31 AM   #3
Jean is offline Jean  United States
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Hi, it's 10.5" W by 6.75" H by 7.5" D . Here is a shot of the internals, I tried to keep everything as clean and short as possible.

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Old 22nd March 2005, 02:58 AM   #4
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Old 22nd March 2005, 06:58 AM   #5
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I like it. That's really professional looking and very compact.

Did you make your bidge out of rectifiers from computer power supplies?
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Old 23rd March 2005, 12:01 AM   #6
Jean is offline Jean  United States
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Thanks. I used BrianGT's GainClone bridge board and MSR or MUR diodes. The AC jack/filter was from a 300watt psu.
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