Denial

Hello!

New to the forum!

Does anyone know of a source, other than eBay, for RAM for a VIC-20 CR Board Assembly #250403?

Thank you

Joe

Welcome.

I guess if you're not keen on eBay you might not be interested in AliExpress? It's hard to find bricks and mortar stores that sell electronics anywhere.

If you are in the US, you could try these guys from Montana. I haven't used them so this is not a direct recommendation, but they aren't ebay or Ali Express.

https://www.arcadepartsandrepair.com/st ... /6116-ram/

Thank you! I'm in California. So they will work!

Joe

I need this too, I was looking at the web sites in the responses and I think I need some advice.

I used the Penultimate Dead-Test to find out that UD2 is faulty when it gets warm.

The numbers on the RAM chips are MM2114N-3L.

I find various versions, some say MM2114N and some say MM2114N-2. All are 18 pin.

Same thing with eBay, some are close but not exact.

If I can find the correct thing, how much should I expect pay for the chips?

Thanks for all of the help!
Steve

There were many manufacturers of these memories, Commodore were not consistent with which they used and you can consider them all suitable. The only parameter you need to be concerned about is the access time, that's the number of the end.

The chip you want to replace ends in"-3" that means a 300 nS access time. You can use a faster rated device. If an alternative has no suffix you'll need to check the manufacturers datasheet. For example, the Fairchild F2114 is 450nS (so would be too slow).