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Old 7th December 2004, 03:32 PM   #1
Vikash is offline Vikash  United Kingdom
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Default TATCA - Tiny And Transparent Chip Amp

I needed an amp for the office. It had to be small but obvious, and cost very little.

This is my Tiny And Transparent Chip Amp, or TATCA:
Click the image to open in full size.

I just used whatever was lying around. Speaker connectors, heatsinks and PSU to be from an old Cambridge Audio amp. Jackscrews and serial connectors from old PC cards/motherboards.
Click the image to open in full size.

I've managed to squeeze in a stepped attenuator too. The volume knob will be made out of acrylic to match eventually.
Click the image to open in full size.

The interior dimensions (not including heatsinks) is ~ 9cm x 10cm x 5 cm.
Click the image to open in full size.

I'm eager to listen to it, but I've got to build the psu first
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Old 7th December 2004, 03:46 PM   #2
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That is indeed very inspiring and reflecting fresh thinking, congratulations on a very unique design.

If you would create some holes pattern in a top acrylic panel, it might look even more interesting
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Old 7th December 2004, 04:45 PM   #3
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Old 7th December 2004, 04:51 PM   #4
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Do you think you have big enough heatsinks?








Looks nice.
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Old 7th December 2004, 04:52 PM   #5
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Heatsinks are definitely fine, maybe even too big
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Old 7th December 2004, 05:54 PM   #6
Ropie is offline Ropie  United Kingdom
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That is very nice - I expect everyone in your office will want one soon
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Old 7th December 2004, 07:38 PM   #7
Nuuk is offline Nuuk  United Kingdom
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Clearly very good stuff Vikash!
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Old 7th December 2004, 08:02 PM   #8
tg3 is offline tg3  United States
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Bravo, Vikash, bravo.

A few well placed blue LEDs deep in the components would add nicely to the viewing pleasure.
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Old 7th December 2004, 11:11 PM   #9
Vikash is offline Vikash  United Kingdom
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Thank you for the kind words gentlemen. I've rewired the attenuator to make it look less messy from the top view. I do like the idea of some holes in the top. I tried some sanding experiments to see if I could make some of the acylic panels less bland but it didn't turn out well. Some holes in the top may be the answer.

Ropie, I work for myself so there's no-one else in my office to make jealous (unfortunately). my precious.

There's one white LED on the front at the moment. I probably should take advantage of the transparent case with hidden led's perhaps, although blue is not really my style

NuuK, thanks for the info on the DIY stepped attenuator. I wired it using the resistor lead outs to make a ground chain.

Click the image to open in full size.
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Old 7th December 2004, 11:23 PM   #10
Alex S is offline Alex S  Singapore
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Just Beautiful!!!

Economic, streamlined simplicity. No unecessary hubris.

I love it!!!
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