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New England WTB a bunch of 27C64 EPROMs

Covers: Vermont, New Hampshire, Massachusetts, Connecticut, Rhode Island and Maine.

VERAULT

Veteran Member
Joined
Jan 30, 2012
Messages
6,509
Location
Connecticut, USA
Anyone have a bunch of 27C64 Eproms they are willing to sell? Or even a few, please contact me. Building up some cartridges and I just need the eproms. Thanks.
 

VERAULT

Veteran Member
Joined
Jan 30, 2012
Messages
6,509
Location
Connecticut, USA
I get them from China, yes, but it takes a few weeks. If you want them right away, here is an example:
https://www.ebay.com/itm/284840232293
Is this cheap enough?
From China you can probably get them at 50c/each.
Yeah I am not against buying from china on certain projects. $7.10 each is too much for me if I can go cheaper I would. China would be a better bet.
 

tpaxia

Member
Joined
Oct 18, 2021
Messages
37
Location
DC/NYC
Yeah I am not against buying from china on certain projects. $7.10 each is too much for me if I can go cheaper I would. China would be a better bet.
It's not 7.10 each. If you buy multiple items the shipping charge is more or less the same... 6 for 18.45.
I ordered these eeproms for the first time but didn't get them yet, so I can't tell you if they work or not.
 

twolazy

Veteran Member
Joined
May 22, 2011
Messages
1,600
Location
Chicago, IL
I got a bunch (20) a year ago off ebay, only 1 was bad... Seller was easy to work with and sent me 2 more to make up. Seems a little cheaper then previous link for the 6 28C64s. Are you building Atari carts? What I used mine for.

 

wperko

Experienced Member
Joined
Jul 4, 2007
Messages
163
Hi,

Something some people don't realize is that we sent millions of tons of old electronics including thousands of vintage computers to China to be recycled. Many smart people in China pulled them apart for the boards, the chips, the cables etc. and now you can buy them on eBay.

.
 

VERAULT

Veteran Member
Joined
Jan 30, 2012
Messages
6,509
Location
Connecticut, USA
Hi,

Something some people don't realize is that we sent millions of tons of old electronics including thousands of vintage computers to China to be recycled. Many smart people in China pulled them apart for the boards, the chips, the cables etc. and now you can buy them on eBay.

.
Oh I know and I for one am all for this. I purchased two sound chips for my Mac color classic from one of those resellers. I was a fair price, it was my only option, and they both worked fine. Selling our junk back to us is capitalism at its best.... I wonder if the irony is lost to the Chinese?
 
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twolazy

Veteran Member
Joined
May 22, 2011
Messages
1,600
Location
Chicago, IL
I personally think they just recycled everything for their machinery, and since they have upgraded much of their infrastructure since the 90s, these parts are seeing daylight as there is no use for them, and viable to the hobby market.
 

wperko

Experienced Member
Joined
Jul 4, 2007
Messages
163
I personally think they just recycled everything for their machinery, and since they have upgraded much of their infrastructure since the 90s, these parts are seeing daylight as there is no use for them, and viable to the hobby market.
Hi,

A few years ago a friend of mine was in the main electronics marketplace in China (I forget the name of the city), and he talked to a bunch of small vendors there and they said when we send our junk electronics to China, they grab as much as they can afford by the pound and pull all the components off to sell to people on eBay. Some of these shops had hundreds of hard to find vintage chips.

.
 

skate323k137

Experienced Member
Joined
Jul 19, 2022
Messages
59
Location
Michigan
Hi,

A few years ago a friend of mine was in the main electronics marketplace in China (I forget the name of the city), and he talked to a bunch of small vendors there and they said when we send our junk electronics to China, they grab as much as they can afford by the pound and pull all the components off to sell to people on eBay. Some of these shops had hundreds of hard to find vintage chips.

.
Almost surely Shenzen.
I don't blame them one bit for selling us ICs back, but their poor ecosystem... a discussion for another place.
 

nullvalue

Veteran Member
Joined
Oct 8, 2019
Messages
590
Location
Indiana
Is there a drop-in 28C (or similar flash) replacement for the 27C512? 28C512 doesn't look pin-compatible. I go through a lot of them and source NOS UV-erasable 27C512's from China (this seller) - I've had good luck with those. Other chips like the 2732's are hit or miss.
 

skate323k137

Experienced Member
Joined
Jul 19, 2022
Messages
59
Location
Michigan
Wow, thank you. Very good to know, but looking at prices they're going for 2-3x more that what I'm paying for the 27C512's.. Guess I'll stick with those as long as I can but it's good to know there are alternatives.
Yeah, I'm in the same boat. But at least they are there.
 
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