I have noticed that there are two different types of GI bulbs on I500, your usual #44's and theres some shorter ones with a very round top, is there any real reason for this other than making then a PITA to get out of the holders?
Both were bayonet.Looking in the I500 manual it says the game uses two lamps: Bulb # 24-8768 and 24-6549. Searching for these on-line it seems 24-8768 is a wedge base #555 and 24-6549 is the bayonet #44. I'm assuming the #555 are the tricky little blighters that are harder to pull out as they're slightly more recessed? They're like that on my Vector. Some, like those under the slingshots, I could only take out by removing the lamp holder from the underside of the playfield!