Newbie Class-A Build - Page 3

MEGA-amp · 8th November 2009, 01:37 PM

Haven't built another yet, its in the works....next one possibly water cooled. Listening to a 20W SOZ with FE127E...an amplifier definitely worthy of building a monstrous chassis for, simply amazing!!

My diy safety rules are as follows (they require some level of "thinking", not enough to break a sweat though):

1.) Keep ALL heat generating apparatus in a metal enclosure.

2.) Never leave the room.

3.) Keep a fire extinguisher within easy reach.

4.) wear safety glasses

You can add a dozen more, but if you follow these, you can take down an amp without taking down the house.

-john

Melon Head · 8th November 2009, 01:46 PM

I love your diy spirit

Jacques Merde · 8th November 2009, 10:20 PM

Quote:

Originally Posted by MEGA-amp

I did find some industrial cooling plates, so that definitely looks like the way to go.

So are these Peltier effect TEC modules? Closed loop temperature control.
Cool!

MEGA-amp · 8th November 2009, 10:35 PM

I experimented and made a few myself, the one's I bought, are basically an aluminum plate with copper piping clipped into them. 0.0110 C/w @ 1 GPM. I'll post a few pics when I find the cam.

MEGA-amp · 19th November 2009, 07:52 PM

As promised:

cooling block with 4 Peltiers - thinking of a super high biased Mini-A for this one.

MEGA-amp · 19th November 2009, 07:55 PM

Homebrew:

Don't quite know what to do with this one.....maybe slap some big aluminum power resistors on there for a SOZ.

MEGA-amp · 19th November 2009, 08:07 PM

Homebrew (in the works):

This one should be a bit more efficient. 12"x3"x0.5" - 0.125" holes

Beftus · 19th November 2009, 10:13 PM

Quote:

Originally Posted by MEGA-amp

cooling block with 4 Peltiers - thinking of a super high biased Mini-A for this one.

Tell me more, I'm all ears!

MEGA-amp · 19th November 2009, 10:20 PM

water cooled peltier block - 3A Mini-A, 0.2R Source, 25V rails, 75W diss per device....for starters.

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8th November 2009, 01:37 PM	#21
MEGA-amp diyAudio Member Join Date: Oct 2003 Location: Newington, CT	Haven't built another yet, its in the works....next one possibly water cooled. Listening to a 20W SOZ with FE127E...an amplifier definitely worthy of building a monstrous chassis for, simply amazing!! My diy safety rules are as follows (they require some level of "thinking", not enough to break a sweat though): 1.) Keep ALL heat generating apparatus in a metal enclosure. 2.) Never leave the room. 3.) Keep a fire extinguisher within easy reach. 4.) wear safety glasses You can add a dozen more, but if you follow these, you can take down an amp without taking down the house. -john

8th November 2009, 01:46 PM	#22
Melon Head Banned Join Date: Nov 2006	I love your diy spirit

8th November 2009, 10:35 PM	#24
MEGA-amp diyAudio Member Join Date: Oct 2003 Location: Newington, CT	I experimented and made a few myself, the one's I bought, are basically an aluminum plate with copper piping clipped into them. 0.0110 C/w @ 1 GPM. I'll post a few pics when I find the cam.