[NeXT] needed an EPROM programmer to work with chips from vintage computers. Starting with a low cost programmer, he built this
custom IC programmer to handle all of his programming needs.
The device is based on the Willem 5.0e programmer. [NeXT] was not
satisfied with the device, noting that it had to be carefully isolated
from metal surfaces during use and required setting many annoying
jumpers.
To solve these problems, he started off by dismantling the
programmer. The IC sockets were moved to a daughter board, which could
be mounted cleanly into the metal enclosure. Replacing the jumpers was a
bit more complicated, a combination of toggle and rotary switches were
chosen to make changing settings easier. Soldering the boards together looks like it was not an easy task,
with 200 solder joints needed to connect the sockets and switches. After
debugging some shorts and dead connections, [NeXT] managed to finish
the 1.5 year project right before his Christmas deadline.
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