Quoted from Thunfisch:As you can see, Alltek uses SMD parts, but supplies you with holes so you can repair it with old-fashioned parts. You can use the original type that was on the original Stern board. By the way, it's not a transistor but a SCR (silicone controlled rectifier, or "Thyristor")
Thank you. I was looking right past the repair holes.
The thing of it is I just got finished building one of those Pinitech UNO displays kits. Each display board has one of the surface mount units to install. They were a snap to install with just a solder iron. So, if Alltek would send me some of these surface mount SCRs I would apply the heat and R & R it.
Quoted from Thunfisch:I guess it is this one
https://www.marcospecialties.com/pinball-parts/2N5064
Can somebody else please confirm?
I guess 2N5060 might do the job as well?
I'll call Alltek in the morning and confirm what we should be using.