>>>"Hey Cash - You and me both... not good with electronics."<<<
Maybe it's the Hudson Valley! ; )
I think the difference may have been the No-Pop 2 worked on more games.(see below from Ad)
This board is for ALL WPC games. It is compatible with all three sound
boards used in the WPC line of games (the A-12738 sound board, the A-16917
sound board, and the A-20516 audio/video board). While the same board works
with all 3 WPC sound boards, the wiring harness for each sound board is
unique and not interchangeable. So when ordering, be sure to specify the
game (or sound board) that you intend to use the NO-POP 2 with so that I can
ship the appropriate wiring harness.
*** Please note, the WPC NO-POP 2 will eliminate the "pop" that comes from
the speakers at start up and shut down. It will NOT eliminate the "screech"
or second "pop" that some people have described that occurs a few seconds
after the power is turned on.