In this video I put together one of the 4116 DRAM testers from the pcbs I ordered from PCBway . The boards were exceptionally well made and worked perfectly. I still have a few left but not many so if you want one you should not delay. I also have a few PCB boards I ordered for through hole parts. I only have five. That’s it. I won’t be making anymore, but you are free to use my files to make or order your own.