New ZX81 16K SRAM modules available soon from ZX ZIGG
Posted: Fri Jun 30, 2017 12:28 am
Hi all,
Along with a good friend of mine I've been speaking with Alastair at ZX ZIGG the past few months about making an internal 16k SRAM module available for the ZX81. I wasn't keen on cutting tracks on the boards to install 16k internally with the methods that I'd read others performing so I spoke with Alastair and he put together a design for a new module and built a working prototype earlier in the year with which professionally produced boards have now been manufactured. The boards were designed specifically for issue 1 boards so there is a little more manual work to install them on issue 3 boards with wire jumpers used in place of one row of pins. See the image attached of the module installed on both the issue 1 and issue 3 board. I assume they will be available to purchase from him any time now, I bought ten several weeks ago but haven't yet had the time to begin installing any.
Along with a good friend of mine I've been speaking with Alastair at ZX ZIGG the past few months about making an internal 16k SRAM module available for the ZX81. I wasn't keen on cutting tracks on the boards to install 16k internally with the methods that I'd read others performing so I spoke with Alastair and he put together a design for a new module and built a working prototype earlier in the year with which professionally produced boards have now been manufactured. The boards were designed specifically for issue 1 boards so there is a little more manual work to install them on issue 3 boards with wire jumpers used in place of one row of pins. See the image attached of the module installed on both the issue 1 and issue 3 board. I assume they will be available to purchase from him any time now, I bought ten several weeks ago but haven't yet had the time to begin installing any.