I doubt 2 Amps will be enough..... Make sure it is slow-blown.....otherwise you will be buying a lot of these.

Yves

Attach a multimeter to the coil, set it for Amps, and play a game. That should give you an idea of the current the coil normally pulls.

For the pop bumper, it would make sense since those could have the potential to get locked on if the switch got stuck or the ball got jammed on the skirt. In system 80 games, fuses were added.

I don't think fuses were added for the slingshots--at least, I don't ever remember needing to troubleshoot slingshots where the coils locked on.

[edit]: I just checked one of the later system 80 games. Fuses on the coils, no fuse for the slingshots.

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That is a very good idea. I will modify my Buck Rogers and introduce two fuses to protect the Pop-Bumpers.
The playfield is out and it will be very easy to modify.

Thanks
Yves

Didn't Gottlieb send out a service bulletin at one point during the early System 80 era to add fuses to select uncontrolled solenoids? Not sure if I'm remembering that correctly.

Alternatively, I've seen people go so far as to add in a pop bumper driver board to System 1 slings and pops. That would add another layer of protection (and give more responsive gameplay). Still, it'd be wise to add a fuse along those as well.