2kw water cooled amp

diya370 · 26th December 2007, 02:43 PM

hi guys any ideas on this amp ? got a pair on ebay cheep. just thought the would be fun to play with ??????? 60 output devices should be fun

latala · 26th December 2007, 06:46 PM

what are the output devices ?
regards Trev

Speedskater · 26th December 2007, 07:06 PM

This company made something similar about 35 years ago.
http://www.mbdynamics.com/index.php

wrenchone · 26th December 2007, 07:06 PM

Looks like the pass bank for an old argon laser. If so, the devices would be fairly high voltage.

kevin gilmore · 26th December 2007, 09:51 PM

definitely a gas laser pass bank. You can be sure that
all the devices are npn transistors and they are rated
for 400 to 500 volts. Total current thru the pass bank
in the range of 35 to 50 amps continuous.

Hotsauce · 26th December 2007, 11:18 PM

I don't see any heat sink there.

Was it just removed for the shot?

John C.

auplater · 26th December 2007, 11:53 PM

Quote:

Originally posted by Hotsauce
I don't see any heat sink there.

Was it just removed for the shot?

John C.

The heat sink is the copper bar the trannies are attched to, with the copper tubing carying the water attached underneath...duh

John L.

diya370 · 27th December 2007, 10:22 AM

its not from an argon laser psu . if it was why would it have v+ and v_ supply rails? all the argon power supplys i have seen (and i work on lasers every day) have only had single ended supply voltages of around 100 to 130 volts at around 35 amps.

AndrewT · 27th December 2007, 01:21 PM

makes a good start for a quasi complementary ClassA stage.

Are one on each bank a driver, controlling the remainder of the bank?

wrenchone · 27th December 2007, 07:46 PM

If not from an argon laser, maybe from soething nasty like a shaker table. Nice find , anyway. Are all the devices the same sex? Any discernable part numbers, or are they house numbered parts?

26th December 2007, 07:06 PM	#3
Speedskater diyAudio Member Join Date: Sep 2002 Location: Lakewood, Ohio	This company made something similar about 35 years ago. http://www.mbdynamics.com/index.php __________________ Kevin

27th December 2007, 10:22 AM	#8
diya370 diyAudio Member Join Date: Apr 2006 Location: uk london	no it isnt from an argon laser its not from an argon laser psu . if it was why would it have v+ and v_ supply rails? all the argon power supplys i have seen (and i work on lasers every day) have only had single ended supply voltages of around 100 to 130 volts at around 35 amps.

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26th December 2007, 06:46 PM	#2
latala diyAudio Member Join Date: Feb 2006 Location: staffordshire	what are the output devices ? regards Trev

26th December 2007, 07:06 PM	#4
wrenchone diyAudio Member Join Date: Feb 2004 Location: Silicon Valley	Looks like the pass bank for an old argon laser. If so, the devices would be fairly high voltage.

26th December 2007, 09:51 PM	#5
kevin gilmore diyAudio Member Join Date: May 2002 Location: wheeling illinois	definitely a gas laser pass bank. You can be sure that all the devices are npn transistors and they are rated for 400 to 500 volts. Total current thru the pass bank in the range of 35 to 50 amps continuous.

26th December 2007, 11:18 PM	#6
Hotsauce diyAudio Member Join Date: Jun 2006	I don't see any heat sink there. Was it just removed for the shot? John C.

27th December 2007, 01:21 PM	#9
AndrewT diyAudio Member Join Date: Jul 2004 Location: Scottish Borders	makes a good start for a quasi complementary ClassA stage. Are one on each bank a driver, controlling the remainder of the bank?

27th December 2007, 07:46 PM	#10
wrenchone diyAudio Member Join Date: Feb 2004 Location: Silicon Valley	If not from an argon laser, maybe from soething nasty like a shaker table. Nice find , anyway. Are all the devices the same sex? Any discernable part numbers, or are they house numbered parts?