[Update: I’d forgotten about the voltage change (3 vs 5 if I remember) needed to write UV EPROMS vs EEPROMS. With a little mod, you can certainly use this for EPROMS as well.] ...

A common requirement for the electronics hobbyist today is a cheap straight-forward EPROM Programmer, suitable for occasional use, without the extra features found on many commercial units. The EPROM ...

Producing a simple and cheap EPROM burner built on veroboard is the objective of this project which supports the 27c801. Producing a simple and cheap EPROM burner built on veroboard is the objective ...

It all started when I bought a late-1990s synthesizer that needed a firmware upgrade. One could simply pull the ROM chip, ship it off to Yamaha for a free replacement, and swap in the new one — in ...