Quoted from pindel:
Does anyone know who sells the" printed circuit light boards with twist-in sockets" as used in the 3rd edition. Would anyone be interested in selling a set?
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I've had a few of them over the years and have converted some 1981 EBD pins over to the twist lamp printed circuit boards. As you are aware, only the third and final 1983 "Classic Edition" Bally/Midway version used the PCB lamp sockets. I have even swapped complete 1983 wiring harnesses over to 1981 EBD pins.
In addition to the PCB lamps, the 1983 Midway EBD wiring harness had a few other improvements. The drop target assemblies all had Molex connectors making it easier to swap out the entire assemblies where the two earlier EBD versions had the horseshoe drop target coil arrays hard-wired to the wring harnesses.
Whenever I see someone parting out a 1983 EBD, I always buy the lamp socket PCBs and the entire wiring harnesses too if they aren't hacked up too bad. As a pinball parts manufacturer and a Ham Radio operator who has made printed circuit boards in the past, I have considered making these boards but have never gotten around to it. I have a lot of other projects going on.
Each EBD pin requires three PCBs for the playfield lamps. Here are two complete sets I have right now that I bought a few years ago. I'm really not looking to sell them though.
Since they only made about 1,500 of the Midway machines, they are getting harder to find. You can still buy the twist sockets brand-new though and I have a bag full of them. Keep looking on eBay and continue to look around. You'll probably find some eventually.
My two current EBD pins still have the original individual 555 lamp sockets but I still keep these for future projects. They are awful nice. I don't know why one is a different color? It's an oddball I guess.
I also still have one complete 1983 wiring harness that could be used with one set of these to do the full Midway conversion. A few years ago I built a gawdy pimped-out 1981 EBD and added the complete 1983 wiring harness. It had an NOS clear-coated playfield and brand-new everything and a lot of chrome. I do both type of machines (hard-core restorations and modified pins) and am not totally opposed to mods. All of my EBD pins retain the linear flippers though. That is one thing I never change.