Hello friends. Just wondering if anyone has any suggestions what could possibly be causing the bulb that's inside my Gottlieb Charlies Angels pinball machine top pop thumper bumper to keep blowing. I thought that maybe I got a bad batch of bulbs but after going through about 10 of them in the last couple of weeks of minimal play I just don't understand it. Would anyone know what could be causing that or is it just the cheesy bulbs the the filaments are not able to take the vibrations?

Yep you nailed it. Probably junk from China. I wonder if there are any good bulbs you can buy for this application.