The 257RB is a bug-fixed copy of Roman’s 257R board.
These PCBs were fixed as a project, by a developer who wishes to remain anonymous, and the board files supplied here.
Since that time, the following has happened –
- A batch of pcbs ordered from the revised files
- Pcbs sent out to beta testers to 100% confirm the absence of bugs
- EMS given the revised / fixed board files as a matter of courtesy
This is nothing greater than Roman / EMS’s board. These boards are not currently for retail.
Front side of PCB –
Rear side of PCB –
Promotional shot –
- PCBs are supplied bare (other components must be sourced)
- No warrenty is given nor implied