Question on my HS:
I have mismatched coils so I'm buying a fresh pair of coils for my flipper rebuild. PBL has these:
http://www.pinballlife.com/index.php?p=product&id=155
The manual says the flipper coils are: FL 23/600-30/2600-50VDC. That link above says "SFL". What does the "S" mean and are they safe to use in my HS?