Incandescent driver board now in fabrication at PCBWay with extended build time of 16-17 days

 COMPLETED DESIGN AS SENT TO THE FAB PLANT

Back face (to rear of 1130) where components mount

The lamp socket is mounted on the bottom (front face), all other parts on top (rear face), which include the three 2 wire connectors for power and the 170 signal 2.54mm pins in addition to the triacs and resistors.

One lamp position from the design

I only needed traces on the rear facing (top) of the board, plus two interior layers that are beefy 2 oz copper to carry the 7.5VAC to the top pin of the lamp connector and the ground through a via to the triac lower right lead.

Circuit I designed

Board circuit does not include transformer, switch nor the 6.2K resistor to signal. The board will have the higher current MCR706AT4G triacs installed. The 6.2K resistor is part of a group mounted inside the chassis of the 1130 system, the transformer is in the power supply area of the chassis and the switch is just under the cover of the 1130 with the other five Customer Engineer switches. 

PCBWAY SUPPORTING EFFORT BY COVERING COSTS OF THE BOARD

PCBWay has sponsored PCBs that are shown on the CuriousMarc YouTube channel which will include a future episode of the 1130 control panel improvement. I just uploaded the files to pcbway.com and contacted our representative to have them mark it as paid thus beginning production.