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Chip Amps Amplifiers based on integrated circuits

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Old 15th May 2003, 02:28 PM   #11
UrSv is offline UrSv  Sweden
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Quote:
Originally posted by SkinnyBoy
peltiers cost too much and are too big.. lol
now you know my budget (nothing +-$5) lol
Smallest alu box you can fit it in and old 486 CPU cooler in funky colour on top. Should be able to fit it in 20 x 50 x 50 mm...
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Old 15th May 2003, 02:30 PM   #12
elizard is offline elizard  Canada
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how about make the amp tiny, seal it inside this plastic box (make sure there's a watertight seal) then immerse that into a pail of water

anyway .. try finding a really small heatsink, or even a small piece of aluminum maybe 1/8" thick .. that should work just fine
they don't get very hot, unless your rails are really high and you play it on the loudest all the time
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Old 16th May 2003, 06:45 AM   #13
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Thats another problem.. I wanted to be able to get ATLEAST 40watts per channel.. lol... hey.. it I'm water cooling I may as well go with LM3886s and +-35volt rails..
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Old 16th May 2003, 01:15 PM   #14
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Lightbulb Bright idea

Use the TF version (the isolated chips).
Then mount all the components, wires and plugs, and a blue led.
After testing, if all is well, holding by one wire, drawn everything in a can of varnish.
Let it dry holded by the wire.
Next day do it again (it's never too much).
Then mount it on a small heatsink, and put everything on a transparent Tupperware full of water.
lol, this is nice!

The varnish trick I used many years ago on an electronic ignition I made for my car.
You could even throw water on it.
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Old 16th May 2003, 04:34 PM   #15
Variac is offline Variac  United States
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To be fair, wouldn't you need to include the power supply?
Maybe a wall wort transformer but the capacitors and diodes need to be in your box. I think an old CPU heatsink (small)with fan would look very cool, and cool very well, and can be quite small.
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Old 16th May 2003, 10:27 PM   #16
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I guess the pump and water hoses aren't counted in the size.

That is stated in the contest rules, right?

Regards
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Old 16th May 2003, 10:47 PM   #17
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Quote:
Originally posted by Music Machine
I guess the pump and water hoses aren't counted in the size.

That is stated in the contest rules, right?

Regards

Yeah, well, there sorta isn't actually a competition... None of my friends are smart enough.... lol

I want an amplifier with a seperate powersupply cos it would be kewl to make a DC-DC powersupply to run it in a car, and mount an extra, smaller radiator somewhere for the water cooling.. lol I think a small clear (would blue be better?) "jiffy" box would be best... a raw aluminium heatsink and blue LED... Silver connectors too.... any other ideas?
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Old 16th May 2003, 11:32 PM   #18
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Maybe a sandwich.

Aluminum plates for bread (about 3"X3"). The chips, resistors, and caps are the meat.

No room for connectors, use pigtails.

No room for water, use bigger bread if needed.

Regards
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Old 16th May 2003, 11:42 PM   #19
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Quote:
Originally posted by Music Machine
Maybe a sandwich.

Aluminum plates for bread (about 3"X3&quot. The chips, resistors, and caps are the meat.

No room for connectors, use pigtails.

No room for water, use bigger bread if needed.

Regards

lol, bigger bread.. but I want water!!! lol I'll use the insulated LM3886 chips mounted on a raw aluminium heatsink in a clear box, sealed and watercooled... lol you do what you like.... lol

Click the image to open in full size.

I-Mac blue case??

Or clear? (sorry, no picture) lol

Or black... but who want black?
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Old 17th May 2003, 12:47 AM   #20
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hey, I found a nice, blue heatsink too... but I only have 1... anyone got another one the same? lol
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