what to do with old 100kva MRI power amplifiers

[Mr transformer]

So I just inherited 4 100kva gradient power amplifiers from a friend. Looks like some pretty impressive components in there. Each unit has 500 Motorola mj 15025 / 15024 transistors mounted to watercoOled silver coated copper busbar.

My question is what can I do with these? What can i build? Where can i sell 3 of the 4 units I don't need? Any help is appreciated. Attached are some pics of these bad boys...

 

[Mr transformer]

here are the pictures

Attached

 

[jaycee]

Sell the capacitors to people who like making Tesla coils !
That transformer is probably really no good to anyone - id expect its probably got a 3 phase primary. Still, it'd get you a nice chunk of cash for scrap.

The MJ15024/5's are still good for amps, particularly PA amps. Strip em out, test em.

Big green Vitreous Enamelled power resistors - measure those, probably good for dummy loads.

I was going to ask what the hell these things were originally for, but it looks like they were something to do with MRI machines. I doubt they're of any value for that application now - i'd expect modern systems would use things like IGBT's or modern MOSFETs.

 

[Tekko]

Build a big bad amp with the unit intact like 50kW output capability into 8 ohms.

 

[Mr transformer]

thanks jaycee...

So I scrap the 3 phase transformers. Check. 2000 lbs @ .23 a pound... ill take it.

Sell the capacitors to Tessa coil builders. Check. Where should I advertise them?

Sell the 15024/15025 transistors individually. Check. I would of assumed that being mounted and water cooled that they would be better sold like they are? Your opinion? EBay?


Vitreous power resistors... sounds like a flux capacitor or something. Think they are worth anything? EBay?

Thanks so much for your help.

 

[Tekko]

Those cabines contain several thousand bucks in parts, good luck finding say the resistors for less than 50 bucks each + shipping on ebay.

For the tesla colil stuff, goto www.4hv.org The rest, go on ebay.

 

[Mr transformer]

You guys are awesome... keep the advice coming. Ill post more pics of the parts that look like they have value.

 

[ingenieus]

Build a big bad amp with the unit intact like 50kW output capability into 8 ohms.

Sounds good to me.

But how many speakers would you need to wire up to handle that sort of power?

 

[Mr transformer]

what about these other components?

Thanks again for the help. You guys rock.
Had no idea what this stuff was.
I attached a FEW more pics of other components.
Can anyone tell me if any of this other stuff is worth anything?
I also see about 60 sq ft of silver plated copper busbar.
The plating seems thick. Scrap copper or refine the silver?