DRAM? Where?

[DWBH]

I need to buy a 41256 DRAM chip. ZIP package would be much better. Is this chip sold anyware (in this package)?
If not, do DIP -> ZIP adaptors exist?
I'm willing to "design" a daughter board for a DIP chip, wired to the main pcb. But if those adaptors do exist, the better.

[Mark Hammer]

Do you have any IDEA just how many older video cards with that precise DRAM in sockets by the meg-ful are sitting in discarded computers at the end of driveways right now at this moment?  Dumpster-dive my friend.

[DWBH]

Yes I do. But there aren't much discarded computers on our dumps. More like thrashed cars and washing machines. No PCs.

[iaresee]

Yes I do. But there aren't much discarded computers on our dumps. More like thrashed cars and washing machines. No PCs.

Try a PC recycling store. You can probably score an old PCI-based video card with the memory you need for ~$5. Or buy from an arcade machine repair shop: http://www.arcadecomponents.com/catalog/item/2251646/1691242.htm

As for the ZIP socket -- umm, what are you using? All the ZIP sockets I've used are designed to take DIP packages with 2.54 mm lead spacing. When I say ZIP socket I mean something like this:



Is that what you mean?

[DWBH]

No, I'm talking about Zig-zag in-line package (ZIP)

http://en.wikipedia.org/wiki/Zig-zag_in-line_package

[iaresee]

"short-lived is" is apt. Look at the products those were found in (Amigas) -- can you find one of those in a salvage store?

Can you not redesign for DIP? You're using obsolete and short-lived which translates to "hard to find and hella expensive". I seriously doubt there a DIP chip adapters for that form factor.

[DWBH]

It's for an Ibanez delay. I'll probably do a daughter conversion board. Until I start dumpster-diving I'll keep looking for ZIP chips

[channelmaniac]

No, I'm talking about Zig-zag in-line package (ZIP)

http://en.wikipedia.org/wiki/Zig-zag_in-line_package

Hi everyone,

I found the forums by searching for my website name. I have the ZIP packaged 44256 DRAM chips, but I don't have them listed on the website. I'll have them listed next weekend when I update inventory on the website.

Feel free to drop me a note if you are looking for old chips and I don't have them listed on the site.

Thanks,

Raymond Jett
Arcadecomponents.com

[doitle]

Yes I do. But there aren't much discarded computers on our dumps. More like thrashed cars and washing machines. No PCs.

Try a PC recycling store. You can probably score an old PCI-based video card with the memory you need for ~$5. Or buy from an arcade machine repair shop: http://www.arcadecomponents.com/catalog/item/2251646/1691242.htm

As for the ZIP socket -- umm, what are you using? All the ZIP sockets I've used are designed to take DIP packages with 2.54 mm lead spacing. When I say ZIP socket I mean something like this:



Is that what you mean?

I'm pretty sure that is a ZIFF socket.

[Taylor]

Yep. Zero insertion force.

[TELEFUNKON]

Hi everyone,

I found the forums by searching for my website name. I have the ZIP packaged 44256 DRAM chips, but I don't have them listed on the website. I'll have them listed next weekend when I update inventory on the website.

Feel free to drop me a note if you are looking for old chips and I don't have them listed on the site.

Thanks,

Raymond Jett
Arcadecomponents.com
[/quote]

Thanks for the heads up, Raymond. Very interesting to know where to find the good old memories!

Excellent first post 

http://www.arcadecomponents.com/memory.html