Quoted from Black_Knight:I swapped out the coil stop with an existing one and took care of 99% chatter. Thanks for the suggestion.
I’ll be ordering some of the PBR stops for this machine and my other Williams EMs.
I’ll be interested in your results. Every one of my flipper rebuilds (with PBR parts) has resulted in “flipper chatter”. I assume you are talking about the buzzing heard when the button is held in.
The only ones that don’t are the later “modular” style flipper assemblies.