Can anyone identify this part?

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Steve
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Can anyone identify this part?

Post by Steve » Wed Jun 19, 2019 10:05 am

Hey guys,

I've been recently getting in to SGI hardware and a friend of mine is trying to find out what a certain part of his PSU is, perhaps someone here can help? I'll pass it on

Here is the link:
https://forums.irix.cc/thread-1065.html

Cheers
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rubber_jonnie
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Re: Can anyone identify this part?

Post by rubber_jonnie » Wed Jun 19, 2019 10:19 am

Well it looks like some sort of bus bar running through it, but I think you'd need to remove the 2 yellow halves to expose exactly what it is.
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stephen_usher
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Re: Can anyone identify this part?

Post by stephen_usher » Wed Jun 19, 2019 11:35 am

Those yellow parts look like they're iron, so they could be magnets or mild steel. Maybe some sort of inductor for smoothing out high frequencies?
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rubber_jonnie
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Re: Can anyone identify this part?

Post by rubber_jonnie » Wed Jun 19, 2019 11:43 am

stephen_usher wrote:
Wed Jun 19, 2019 11:35 am
Those yellow parts look like they're iron, so they could be magnets or mild steel. Maybe some sort of inductor for smoothing out high frequencies?
Could be, and they are clearly split for installation and held together with tape.
Collector of old Atari things:
800XL + Ape Warp mod, 2x 1010 cassette, 1050 + Happy mod, 65XE (128k) & XC12, SIO2SD, 2600jr, 7800 and Lynx II
Atari 520ST (1Meg) + Gotek, 1040STFM + Vortex ATOnce + Gotek, 1040STF long button floppy, 4160 STE with Gotek and ROM switcher, 4160STE with 32Mhz booster, ROM switcher and CosmosEx, not to mention various bare ST boards for testing including a PAK 68/2 :)
Plus the rest..
Amiga stuff, Mac stuff, Sinclair stuff etc...
www.electronicnothingness.co.uk

project23
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Re: Can anyone identify this part?

Post by project23 » Wed Jun 19, 2019 11:48 am

Maybe some detail about the material would help...

Is the yellow material solid? Spongy? It isn't really clear in the picture.

Also the 'wrap' around it... is that just empty tape or very thin enamelled wire?

Also is there continuity from one side of the component to the other? (on the metal bar sections)

*shrug* just throwing out questions, lol

project23
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Re: Can anyone identify this part?

Post by project23 » Wed Jun 19, 2019 11:50 am

Now that I think about it, could it simply be a power rail? I mean that's some real funky arrangement of closely packed boards there... what if the yellow 'stuff' is just insulation around a pretty high current power rail?

Steve
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Re: Can anyone identify this part?

Post by Steve » Wed Jun 19, 2019 7:44 pm

Seems that it may have been a surface mount resettable fuse...
Falcon ct60e 060 - 256mb ram - phantom bus and dsp accel // Atari TT - Thunder and Storm IDE 64mb ram - Lightning VME - USB LAN - Ati Mach64 2mb // Atari STM 4160 - 4MB ram - 16Mhz exxos 1.5 booster - Ultrasatan

Maximilian
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Re: Can anyone identify this part?

Post by Maximilian » Wed Jun 19, 2019 8:25 pm

Those fuses are for PCB mounting, and those are much smaller, also those fuses would probably not smell.

If I were to guess it would also be a buss bar, just measure the top and the bottom piece of metal and it will probably be fully conductive.

The defective part will probably be something else, as you need to open it up to repair it anyway , you should probably do so and have a better look.

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