Extra New Clock 80 and Orcestra 90 for Model III/4 boards

[oktology]

I took Pascal's Gerbers and ordered up one of each, well the minimum is three cards, so I'll have two extras of each.

Necroposting to ask for more info the mythical "Pascal's Gerbers," as a quick Google didn't turn anything up. Where can one acquire them?

 

[fjkraan]

A very long time ago I send this sketch to Pascal and he based the his board design on this. A somewhat better schema can be found in this document: https://electrickery.nl/comp/trs80/doc/UtrechtBus.pdf.
Not really a gerber file set, but you could create it with KiCAD.

Greetings,
Fred Jan

 

[oktology]

A very long time ago I send this sketch to Pascal and he based the his board design on this.

That’s a start. Thanks for sharing this.

You wouldn’t happen to have any others, would you?

 

[fjkraan]

About a year ago I wanted a NewClock-80 and reverse engineered the schema from the photo's on Pascal's site. The schema appears to be complete, but I lost interest before the board layout was made. This is for the Model 1, but changing the connector and adding the EXTIOSEL signal (one extra transistor) should work.

 

[oktology]

About a year ago I wanted a NewClock-80 and reverse engineered the schema from the photo's on Pascal's site. The schema appears to be complete, but I lost interest before the board layout was made. This is for the Model 1, but changing the connector and adding the EXTIOSEL signal (one extra transistor) should work.

Nice, thanks!