Sourcing RAM chips

[opticpow]

Hi All,


I was just wondering where people usually source their replacement 4164 RAM chips from? Approx $10 per chip and anywhere up to $30 postage to Australia from ebay is a bit steep me thinks.


Cheers,


Wayne

[CraigsBar]

I got a package of 8 NOS chips from a seller that n the UK for about 10eur

Sent from my ONEPLUS 3t using Tapatalk

[opticpow]

I got a package of 8 NOS chips from a seller that n the UK for about 10eur

Sent from my ONEPLUS 3t using Tapatalk

You wouldn't happen to have a link?

[rpalmer]

I have found a schematic which can replace the 64K DRAM with a single 128K SRAM where only 64K is used, but can be modified to use the whole 128K.

This is one of the things I intend to do to my 6128 to make it possible to get replacement SRAM in the future, since currently the 4164 DRAM are hard to come by and are quite expensive.

See zip and doc files of what how to make for a replacement 64K/128K RAM scheme.

Rpalmer

[CraigsBar]

You wouldn't happen to have a link?

https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.co.uk%2Fulk%2Fitm%2F253246021867

Sorry 10 pounds not eur.

Sent from my ONEPLUS 3t using Tapatalk

[opticpow]

Thanks @craigsbar I'll order some.


Wayne

[opticpow]

I have found a schematic which can replace the 64K DRAM with a single 128K SRAM where only 64K is used, but can be modified to use the whole 128K.

This is one of the things I intend to do to my 6128 to make it possible to get replacement SRAM in the future, since currently the 4164 DRAM are hard to come by and are quite expensive.

See zip and doc files of what how to make for a replacement 64K/128K RAM scheme.

Rpalmer

Cool thanks. This repair is for my 664 which I want to keep original. Might look at it for my 6128 daily driver though.


Wayne

[Audronic]

Hi Wayne


What state are you in, I am in Williamstown Victoria,
I have 8 4164's here for $10.00 Australian. Plus Postage

Hope this helps

Ray

[opticpow]

Hi Wayne


What state are you in, I am in Williamstown Victoria,
I have 8 4164's here for $10.00 Australian. Plus Postage

Hope this helps

Ray

Hi Ray,


Cheers that would be great. I'm in Newcastle, post code 2302. If you want to PM me total cost with your email I'll pay pal you.


Wayne.

[Audronic]

Hi Wayne


I will go to the Post office Monday Morning.
I will package them in a Cassette Box.
and get the details back to you


Ray

[Audronic]

Hi Wayne


Photo of Postage details


Ray

[opticpow]

Thanks Ray. Chips arrived. Replaced the faulty two and she is a goer.


Wayne.