The Sinclair QL Forum

Posted: **Sun Apr 24, 2022 10:54 am**

Dave wrote:If Tetroid's QL board replacement was instead 4 layers, with the inner layers being unbroken power and ground fills, and all surface power and ground traces were eliminated, the QL board would be much more ideal. Not only that, removing the outer layer power and ground traces would allow many of the tracks to be repositioned more spaciously, grouped better, and eliminate a lot of crosstalk.

Sounds like you just invented a useful product to develop that other QL users would want.

Posted: **Sun Apr 24, 2022 7:25 pm**

Tetroid's already done that - just needs to pay the little extra to make it a 4-layer board. 98% of the effort is just in reproducing what he's already done. If I were going to invest that amount of effort I'd just finish Issue 8.

Posted: **Mon Apr 25, 2022 9:06 am**

The Sinclair QL Forum

Use note on Tetroid buffered backplane...

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