ATARI 800XL 256KB XE compatible Memory Upgrade WizzTronics full upgrade For Sale

ATARI 800XL 256KB XE compatible Memory Upgrade WizzTronics full upgrade
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ATARI 800XL 256KB XE compatible Memory Upgrade WizzTronics full upgrade:
$34.99

Continuing with my goal of keeping products for sale that sometimes become unavailable, I\'m happy to bring to for sale, the Claus Buchholz designed 256K upgrade \"QuarterMeg Atari\"- XE compatible version.
For Atari 800XL with Antic C021697 (or C021698).The way it works is you pull the 64K drams from your Atari 800XL, and replace them with 256K drams.Then you plug in this circuit to U27 on the motherboard. There are 6 wires to connect, and you will have upgraded from 64K to 256K and it will work as an XE compatible memory upgrade.
This sale is for everything you need to do the upgrade.
It includes:
The Quarter Meg fully populated PCB to plug into U27.6 dupont wires1 16p precision socket8 41256 DRAM chips
Instructions will be included. This is a relatively simple project, but it requires some soldering.
Credits---------I do my best to give credit, but it isn\'t always clear. The gerbers were uploaded to oshpark in 2018 by archeocomp.
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