Hi All, Attached is a link to some photos of the N8VEM ECB bus monitor I just built. http://groups.google.com/group/n8vem/msg/2fe8df76d05be1d5?hl=en The design is pretty general as a Z80 bus monitor and the original C'T Projekt article mentions you can build an adapter to convert the ECB interface directly into a Z80 40 pin DIP socket. Although I haven't made the adapter socket myself, it makes perfect sense to me since the ECB bus is essentially just buffered Z80 bus signals and the bus monitor should not notice the difference. If you have any questions, just let me know. I have several of the PCBs left if you'd like to build your own ECB bus monitor. The parts are fairly inexpensive items and the PCB is only $20 plus shipping. Clive and Rolf posted a bunch of videos of the ECB bus monitor in action so you can see those to if you'd like. They are on the N8VEM website and on Rolf's ECB pages. Thanks and have a nice day! Andrew Lynch