For sale are new made prototype boards for the MITS Altair 680. These boards are the same dimension as the MITS Altair 680 RAM board and have a relief cut to allow clearance in the bottom slot of the expansion riser. The board includes mounting areas for a 5V regulator, decoupling capacitor, two bypass capacitors, and an axial bulk capacitor.

This is a new made, high quality protoboard with the following features:

• Standard 0.062" thickness FR4 substrate
• Selective hard gold plated edge connector (much thicker than ENIG)
• 45 degree edge chamfer for easier card insertion
• HASL surface finish with leaded solder
• Holes sized to accommodate up to 2 Watt resistor leads (allows for inserting multiple wires)
• Edge connector pins brought up to header pads, pin numbers marked as shown
• Mounting areas for regulator, heatsink, and capacitors
• Support holes for 6-32 threaded standoffs
• Suitable for point-to-point or wire wrap construction