12p onto a 27c128??????

[nutbag355]

Bloody legend, now I just need a crash course on desoldering and fitting those without making it look like it’s been through a house fire.
Also does using those mean it doesn’t matter what type of me cal you use ie v6 v8 ect ect?? Because I’ve got a few v6 memcals kicking around

[vlad01]

A small butter knife and small pick tool, pry each side up so the socket tabs lift up with the chip, thin tip soldering iron that's clean you heat and push those tabs down again one at a time. Then you pry up again with the knife/pick and repeat cycle until the tabs are no longer soldered to the pins.

I recommend soldering in a machined socket in place of the chip for ease of removal latter.

[nutbag355]

I did a trial run unpicking one today and that’s pretty much how I did it and it worked well enough but soldering it back in was an issue, I couldn’t get the programmer to I’d it afterwards so I must have put to much heat into it maybe

[vlad01]

I had one die like that too. Some of the address lines internally shorted or something as it wrote the same data to 2 places on the chip at the same time. Still did it even after I removed it and tried in the programmer by itself. This is why I use a socket first and then install the chip into that. Makes programing easy too as you don't need an adapter.

[immortality]

https://www.ebay.com/itm/10pcs-W27C512- ... %7Ciid%3A1

Second lot I've got through this guy I love not having to erase eprom anymore lol

Sweet. I've just ordered some. I had a bad tune recently as my uv eraser is getting old and tired and taking almost an hour to erase a chip.

[nutbag355]

I had one die like that too. Some of the address lines internally shorted or something as it wrote the same data to 2 places on the chip at the same time. Still did it even after I removed it and tried in the programmer by itself. This is why I use a socket first and then install the chip into that. Makes programing easy too as you don't need an adapter.

My thoughts also, have you got a link to the adapter and where you get them from?

[immortality]

Jaycar should have the machined sockets you need.

[nutbag355]

Jaycar should have the machined sockets you need.

Awesome

[delcowizzid]

https://www.ebay.com/itm/10pc-DIP-IC-So ... XQdx5RFfGD

https://www.ebay.com/itm/50pcs-28Pin-wi ... Swv-NWVAa8

10 or 50 or can buy them singly probably cheaper ones if you go looking just make sure they are machine tool sockets not the flat slot kind

[nutbag355]

Thanks for those links. Champion. Will be getting my ordering stick out later and going shopping.