(Topic ID: 221181)

Newbie question re:555 bulbs

By Flamingo43

9 months ago

Topic Stats

  • 5 posts
  • 3 Pinsiders participating
  • Latest reply 9 months ago by Flamingo43
  • No one calls this topic a favorite


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    #1 9 months ago

    I am sorry for what I imagine is a really silly question, but I have an RBION that is missing one of the 555 bulb bases that twists in/out - I've got plenty of replacement bulbs but none of them come with this base. (It looks like the brass bottom in this image: https://www.pinballlife.com/images/products/blue_44_47_555_bulbs.jpg)

    I haven't had much luck searching - is this a part that is available for purchase somewhere? Thank you in advance.

    #3 9 months ago

    When looking at the pic you sent the bulb on the left is a 555 and the one on the right is a 47 looks like which is usually engraved into the metal base. FYI 44’s are a little brighter, give off more heat and draw a little more current than 47’s which is why some like to use them over the 44’s which originally came with most pinball machines.

    #4 9 months ago

    Ripley's has a lot of bayonet base sockets - check here for what you need.


    LTG : )

    #5 9 months ago

    I took a look at the bulbs and am embarrassed to say perhaps they are meant to be 47s. They are not documented in the lamp matrix for whatever reason so I assumed they were 555s like everything else and needed a socket. (They are the row of lights just under the glass and above the temple as shown here: https://images.pinside.com/4/6a/46a4c2ebf9659a74d044db05174176c6634bce3a/squared/mediumthumb/46a4c2ebf9659a74d044db05174176c6634bce3a.jpg )

    I will pick up some 47s and some of the sockets just in case. Thank you both very much for helping a newbie out!

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