I’m in process of building one of Martin Eberhard’s 1702/A programmers. I just finished soldering the PCB. and here is what it looks like.

1702 Programmer PCB

The ZIF connector and three LEDs are mounted on the back side of this board, which will be mounted upside down in the enclosure. Martin did a great job with the layout – the overall structure of the layout reminds me of the Apple II’s layout, which, in my opinion, was a masterpiece in it’s day.

There are a lot of discrete components, but that is because of the high programming voltages required. At one point, I searched and couldn’t find any suitable integrated circuits that will handle the 50+ volts required to program this part.

I also have made the cutouts in the case and have painted it. The case is a plain black styrene plastic, so the paint really improves the look. Here it is, along with the two transformers and the power entry module. I have everything I need to finish it, except for the DB-9 serial port connector, which is still on order.

1702 Programmer – Major Components

I need to go back and check the detailed manual, but I think the next steps will be wiring the transformers and testing the power supplies.