Monster Output Stage- 2 KW

lgreen · 6th December 2006, 08:50 PM

For those of you who need high power, see the attached output boards, labeled "2KW Power Board." I took these pics with my phone at the surplus store so that's why the quality is awful, but no one ever liked my pics anyway....

6 rows x 11 TO-220 output devices per row (2 rows have 12), placed on a flat copper bar with a hollow copper tube running below the length of the bar. Rubber tubing connects to the copper tubes so that you can put water or some other liquid in the tubes to cool down that bad boy.

The boards include 0.1 ohm emitter power resistors and other components.

Picture #3- top and bottom of 2 boards

lgreen · 6th December 2006, 08:52 PM

Picture 08- as close up as i could get with my cell phone, top view

Looks like there are diodes and base resistors, in addition to the emitter resistors, for every transistor.

lgreen · 6th December 2006, 08:53 PM

Pic 09- bottom of board, note that the V+ and V- go to copper bars. Based on my quick look, I think that the hollow copper tubes are live, which would make the water (if that is used) inside them live too!

The hollow copper tube is sized such that it is small enough for the TO-220 emitter and base pins to be soldered directly to the PCB.

lgreen · 6th December 2006, 08:54 PM

Pic10- top view of 2 boards.

Yes, they have 5 so you can use this for your 10.0 KW home theater system.

Price- $20 for each board. The boards looked to be in great shape too. Now if only we could find some speakers to connect these to.......

jacco vermeulen · 6th December 2006, 09:22 PM

Quote:

Originally posted by lgreen
no one ever liked my pics anyway

How dare you say a thing like that !

TO220 ? => I've gone blind, Ma (TO3)

20 bucks is cool.

lgreen · 6th December 2006, 09:30 PM

Quote:

Originally posted by jacco vermeulen

TO220 ? => I've gone blind, Ma (TO3)

20 bucks is cool.

I am an idiot! TO-3!!! TO-3!!! TO-3!!! TO-3!!! TO-3!!! TO-3!!! TO-3!!! TO-3!!!

FYI, the copper you see on the underneath of the board is not a trace, its a copper bar that is attached via rivets to the board. In fact, quite a few things were rivited to the board.

kvholio · 6th December 2006, 09:42 PM

no one liked your pics ? then i must be no one.
You're one of the few true diy'ers.
Looks meaty btw. Some industrial application ?

With kind regards,

Klaas

Zen Mod · 6th December 2006, 09:43 PM

I hate ya .

imix500 · 6th December 2006, 09:54 PM

It's very possible those were pass regulators used in industrial ion lasers. I've got a crate full of those things somewhere.

Nelson Pass · 6th December 2006, 10:32 PM

And what part numbers are those TO-3's?

6th December 2006, 09:43 PM	#8
Zen Mod diyAudio Member Join Date: Jan 2003 Location: ancient Batsch , behind Iron Curtain	I hate ya . __________________ my Papa is smarter than your Nelson ! tnx to clean thread ; Cook Book ; PSM LS Cook Book ; Baby Diyaudio FORUM ; BAF Forum & Gallery;I'm dumb

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6th December 2006, 09:42 PM	#7
kvholio diyAudio Member Join Date: Jul 2005 Location: leeuwarden	no one liked your pics ? then i must be no one. You're one of the few true diy'ers. Looks meaty btw. Some industrial application ? With kind regards, Klaas

6th December 2006, 09:54 PM	#9
imix500 Proud Union Member diyAudio Member Join Date: Mar 2004 Location: Nashville, TN	It's very possible those were pass regulators used in industrial ion lasers. I've got a crate full of those things somewhere.

6th December 2006, 10:32 PM	#10
Nelson Pass The one and only Join Date: Mar 2001	And what part numbers are those TO-3's?

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