I just got some treasure...
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johnorun



Joined: 04 Apr 2008
Posts: 3364
Location: Chicago, IL- US

PostPosted: Tue Apr 08, 2008 2:29 am    Post subject: I just got some treasure... Reply with quote

I just got these IDT chip modules on Ebay.
Are they uncommon and are they from military gear?
I'm just a novice collector, but I think these are really sharp beauties!
Did I get a good deal for 39$ incl. shipping??
>>> Ohhh...and is there much gold plating in these??

(pics below)
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el_gecko



Joined: 25 May 2005
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Location: Nice, France

PostPosted: Tue Apr 08, 2008 3:23 am    Post subject: Reply with quote

If you like them, you made a good deal! Unfortunately they were desoldered, but imho these odd chips are a nice add in any collection Very Happy

I don't have info about them but I also have a 7M135 in my collection. Your lot is very interesting for us because your second 7M135 describe all chip's names, so it'll be easiest to find out informations on it.

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el_gecko



Joined: 25 May 2005
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PostPosted: Tue Apr 08, 2008 3:38 am    Post subject: Reply with quote

In fact the 7M135 is a 16K x 8 Dual-Port Static Ram Module:
www.fulcrum.ru/Read/CDROMs/IDT/docs/rp00010/rp0106e.pdf

7132 chips are high speed 2K x 8 Dual-Port Static Ram chips:
http://www.chipcatalog.com/Datasheet/8C4408AD83811E30A897005DE5CD7995.htm

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JAC



Joined: 24 Jul 2005
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PostPosted: Tue Apr 08, 2008 12:01 pm    Post subject: Reply with quote

Very nice.. from rare-chips-4u?
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PostPosted: Tue Apr 08, 2008 12:06 pm    Post subject: Reply with quote

No--got them from an Ebay listing from Canada. The shipping was kind of high,unfortunately.
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CPUShack



Joined: 16 Jun 2003
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Location: State of Jefferson, USA

PostPosted: Tue Apr 08, 2008 12:24 pm    Post subject: Reply with quote

those multichip DIP's are pretty sweet really.
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JAC



Joined: 24 Jul 2005
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PostPosted: Tue Apr 08, 2008 12:47 pm    Post subject: Reply with quote

Yeah, I like them as well. How much did you pay?
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Chiefish



Joined: 23 Sep 2007
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PostPosted: Tue Apr 08, 2008 2:50 pm    Post subject: Reply with quote

I thought rarechips had some of those for sale recently too, None the less i like those kind of chips myself, but they always seem to fetch a good penny on Ebay. Most likely because of the scrap gold value
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el_gecko



Joined: 25 May 2005
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PostPosted: Tue Apr 08, 2008 2:54 pm    Post subject: Reply with quote

Chiefish wrote:
I thought rarechips had some of those for sale recently too, None the less i like those kind of chips myself, but they always seem to fetch a good penny on Ebay. Most likely because of the scrap gold value

Yep, nice chips. I tried to get them but they sold over $25, and only a couple were really interesting. Gold gold gold... pfffff.

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johnorun



Joined: 04 Apr 2008
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PostPosted: Tue Apr 08, 2008 4:28 pm    Post subject: Reply with quote

Is the gold plating in any chip actually worth more than a few cents?
Do these 1990's IDT chips have more gold plating than average?
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johnorun



Joined: 04 Apr 2008
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PostPosted: Tue Apr 08, 2008 4:29 pm    Post subject: Reply with quote

I paid 39$ US including shipping (see 1st post above).
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Chiefish



Joined: 23 Sep 2007
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PostPosted: Tue Apr 08, 2008 5:48 pm    Post subject: Reply with quote

I think the actual gold vaue is a couple dollars a chip, but i dont know for sure. I guess they could also run higher is because they look sweet. Heres the last one simular to these i bought, pretty sure i paid 20 bucks for this , so i wouldnt say you paid too much for those. Smile This chip looks the same on both top and bottom, im just too lazy scan the other side of it right now. Embarassed
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JAC



Joined: 24 Jul 2005
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PostPosted: Tue Apr 08, 2008 5:59 pm    Post subject: Reply with quote

Very nice chips.
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johnorun



Joined: 04 Apr 2008
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PostPosted: Tue Apr 08, 2008 7:59 pm    Post subject: Reply with quote

Wow,,that is sweet!
The whole family on one chip....hehe.
Can we convince you to take a pic of the bottom?
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CPUShack



Joined: 16 Jun 2003
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PostPosted: Tue Apr 08, 2008 8:34 pm    Post subject: Reply with quote

64k SRAM Industrial temp spec (-9) if it were -2, it would be military spec.

a very nice chip either way

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