Manufacturer Stern Availability Stern Solenoid Driver Board SDU-100 Complete, untested board in good condition. $45.00 Qty: Add to cart Email a friend Question about product? Add to wishlist Details Original Stern pinball solenoid driver board from the late 70s. This one appears to be complete and in good condition. No burns or corrosion from what we can see. The plastic shield on the heat sink is cracked, but otherwise this board is cleaner than most we come across. Untested and sold as-is, we have no means of testing pinball boards.