(Topic ID: 313536)

Black Hole Display Lense - Original?

By cpyne

4 months ago

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  • 8 posts
  • 6 Pinsiders participating
  • Latest reply 4 months ago by frenchmarky
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gtb-21399w (resized).jpg
bh1 (resized).jpg
bh2 (resized).jpg

#1 4 months ago

Hi All,

Can anyone confirm if this is the original lense plastic that goes on a BH? I'm restoring this machine and there are a few customizations the previous owner made where I'm not sure if pieces are original vs custom. Currently this machine is running a red LED 4 digit display here that is too dim to shine through this plastic.


bh2 (resized).jpgbh1 (resized).jpg
#2 4 months ago

I'm not a Black Hole expert, but there should not be any plastic on the backglass that I know of.

#3 4 months ago

The displays should have a blue cover over them.
Steve Young used to stock them, but no more.

gtb-21399w (resized).jpg

Maybe try some clear blue window tint from Amazon, directly on the display glass. Worked great for my Haunted House, which needed green.

#4 4 months ago

Black Hole used no covers at all.
The score windows on the inner backglass were overlayed with a blue "film" from the factory.
Typically, this film becomes scratched or wears off. Mark Clayton offered replacement film years ago.

Here is a reasonable pic of a normal BG...

The green "lenses" pictured in a prior post were used on System 80A 7-Digit displays (and for Devils Dare, the 6-Digit extra displays).
Chris Hibler - CARGPB #31
http://www.PinWiki.com - The Place to go for Pinball Repair Info

#5 4 months ago

The 4 digit display on BH is actually in the apron, not the backglass. The backglass ones do look normal and have a much lighter blue. Just a light blue tint on the displays themselves. It is just the apron one that I'm not sure of. From searching around, it looks like there is a blue lense, but mine just seems to be too blue & thick. Here's an example of one.

bh3 (resized).PNG
#6 4 months ago

That looks just like the plastic on the last two Black Holes I've worked on.

#7 4 months ago

Great. Thanks. I guess this is just red light unable to pass through blue plastic. I'm going to pick up an original display off ebay to replace this one

#8 4 months ago

On mine the original was missing and someone taped a piece of thin blue film under the apron where the old one was. I didn't even know it wasn't original until now. You can buy a sack of different colored cellophane sheets for only a few bucks and layer them if needed to make it darker or create different tints. I've used them to tint some LEDs.

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