GB1 and GB2 trap differences?

Equipment Ghost Traps
1

I was just looking at the GB1 and GB2 trap reference photos, and I noticed that the dowels on the side on the GB2 trap seemed much closer together than on the GB1 trap. On further inspection I also determined that the danger sticker was closer at the top and the bottom to the bolts than on the GB1 trap. This led me to believe that the GB2 trap may be shorter than the GB1 trap.

However, I then realised that the GB2 trap photos were of a stunt trap, which would explain the differences, and decided to cross reference the GB1 trap with stills of the GB2 trap from the movie.

Those stills revealed that the dowles were the same distance apart on both the GB1 trap and GB2 trap. But I noticed another difference. Look at the knobs on the front of the two traps:

The right front round and square knobs have switched places! Also, the right square knob doesn’t have the little silver tab on the top of it.

And here’s another thing I noticed… The hero trap from GB1 differs slightly from the one used in the Slimer scene:

The top left knob is silver, not black!

And one last thing I discovered while stepping through the GB2 courtroom scene:

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Notice how the right side door of the trap lifts first?

Well I just happened to be looking at the shape of the doors earlier today and I noticed for the first time on the GB1 hero trap reference photos that the doors have a lip on the edge of them which interlock. And to interlock properly, one door has to close first, and the other open first.

And when I saw that one side opened first I thought, “Hm… I wonder if they kept that lip I saw earlier on the GB2 traps.” and lo and behold, as you can see in the third pic, they did, but it’s reversed! The lower lip on the GB2 traps is on the left door, while on the GB1 trap, it was on the right!

Well, on these traps anyway. Who knows if all the traps were the same or not.

[edit]

Oh and one more thing I just noticed. The GB2 traps have screws on all four corners of the aluminum side plates, while the GB1 traps only had screws on opposing corners!

2

So no interest in this?

3

Oh well, I’ll point out some more differences myself then. :slight_smile:

Ectofiend posted this pic today in the uniforms forum:

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And it reminded me of another trap difference I’d noticed. See the little black knob on the side of the trap? That’s not the teardrop knob! That’s the location where the knurled aluminum knob is at on the GB2 trap.

You can see it better here:

It appears to be a round black knob, the same width as the resistor, with eight bumps around the top.

And here’s another small detail I noticed… In the scene where they bring the smoking trap out, this side knob appears to have changed once again. You’d never notice it, if not for the telltale gleam of chrome coming off the end of it as the trap spins around:

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The type of knob isn’t very clear, but aside from the chrome, it appears this knob has a bit that sticks out on the side of it, and as such probably doesn’t have the bumps around the top. If you look towards the bottom you might be able to make out the bump in question.

4

I kinda don’t want to post because I feel that if no one responds, you’ll keep pointing out these gems for us all to enjoy.

I think you arent getting a response because you pointed out things people never noticed, and now the trap they spent months to work on is inaccurate :slight_smile:

I don’t have much to add (considering I never even noticed these differences before), but did want to say good work!

5

If no one responds, I’ll think nobody gives a damn. :slight_smile:

Also…

While looking for some reference photos of the pack, I just realised there’s some more trap reference pics in the reference section which aren’t linked from the trap reference page.

This pic shows the shape of the front knobs really well. The square knobs look a little less rectangular than I thought they were, but the round knobs have the same sort of side texture I thought I could just make out in the film:

I could have sworn seeing a knob with that texture before and then I remembered that the olive garden guy’s knob had that texture. He must have paid more attention to the reference photos. :slight_smile:

There’s a good photo of the GB2 side knob as well:

Looks like it’s got only vertical knurling. Not identical to the radio shack knob I found, but close. At least in appearance, I still can’t tell if the size is right.

6

I don’t mean to rain on anyone’s parade or anything, but if I’m not mistaken it’s fairly common knowledge that the positioning of the knobs on the front of the trap varied between each prop, and between each film. There’s a wealth of images in the reference section to attest to it…that said, I had never noticed the differences in the side knob in GB1 when they walk out of the ballroom, good eye…

7

The lack of response, as mentioned, is mostly to do to the fact that the differences have already been covered in other locations and on other forums. The GB1 and GB2 traps use different knobs completely other than the tear drop knob. The side knob on the rolling/opening trap and the lobby smoking trap are both the same type of knob, one just doesn’t have the aluminum insert anymore (see below for the knob). The bump you’re talking about isn’t part of the knob, it looks to be a red triangle (like on the proton gun) just below the white triangle.

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8

I went out looking for knobs again today, and I found some knobs which are very close to the small black knobs on the GB1 and GB2 traps. They’re not exact, lacking the screw in the side, and having a thin base with numbers around it which I plan to remove with a razor, but I thought I’d mention it because I found the same knobs on a piece of audio equipment at the surplus store, and if you’re looking for these particular knobs, then you might want to begin your search with audio knobs.

Also, I found a chrome knob which was nearly perfect for the side of the GB2 trap. It had vertical grooves around the sides, and looked like it had the right proportions. It was a fairly hefty aluminum knob. Unfortunately, the cap on it was black instead of chrome, and on the side the black line was on a bit which stuck out from the knob. But the knob looked practically brand new, which gives me hope that there is a knob out there in that style without the side protrusion, and with a chrome cap, because knobs often come with optional cap colors. There was no manufacturer name on the know unfortunately. That would have made the search a lot easier.

9

Hey I found a pic of a straight knurled chrome knob which is like the one I saw at the surplus store, but with a chrome cap. It still has the pointer, but without that it would looks pretty much identical to the GB2 knob:

http://www.allproducts.com/metal/stknobs/Product-200496105420.html

Hopefully I can find out who makes it because they’ll likely have a non-pointer variety.

10

I found a place that sells those GB2 knobs!

http://www.alliedelec.com/Search/ProductDetail.aspx?SKU=6641963&MPN=DD-90-3-6&R=6641963&SEARCH=6641963&DESC=DD-90-3-6

At least I think that’s it. I’m not sure what the exact size of the real knob is.

I can’t find the GB1 knob namebrand posted though. :frowning:

11

yep…looks about right, that site also sells accurate front knobs for the trap GB2 style as well you can see those here: http://www.alliedelec.com/Search/ProductDetail.aspx?SKU=5431200&MPN=1200-W&R=5431200&SEARCH=5431200&DESC=1200-W

im getting parts now I wanna make the courtroom scene trap to go with my GB1 trap.

If you look at my trap it has all real parts on it that are accurate for GB1

Griff

12

Those knobs seem to have the right variation in the width of the grooves around the edge, but I don’t think they’re a match for the GB2 trap knobs:

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I found a lot of knobs just like the one above, but that big chrome cap on top just looks wrong to me. I think it looks more like there’s just a chrome insert surrounded by plastic on the real knobs.

This is a knob I found. The grooves around the edge don’t vary in width at all, but that’s a small detail compared to the cap, which looks more correct to me. I plan to cut the bottom off of course:

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The knob looks shorter here than it actually is, cause I was zoomed in when I took the photo.

The knob btw, came off a piece of audio equipment. There may be a knob like it out there for audio equipment which doesn’t have that bottom piece, but the grooves are probably still gonna all be the same width.

13

the knob i posted..the silver top pops off but ur find is impressive..it looks little wide though

Griff

14

The silver top comes off, but is it silver underneath? I suspect not :slight_smile:

As for my knob, yeah it looks too wide in the photo, but in person it looks right. It’s just the squashed perspective you get when zoomed in with a camera which makes it look squat. I’m not sure if it’s exactly as tall as the real knobs, but it seems the right scale relative to the square knobs I have. So… I guess we’ll see when I build the trap how they look in place, I don’t know. I know neither is the right knob precisely, but they’re the closest I have been able to find.

15

do u have pics of ur square knobs??

Griff

16

Right here. I’ve got five sets I’d like to sell:

http://www.gbfans.com/community/viewtopic.php?f=31&t=9131

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The end of the square knobs would need to have some silver sticky paper or something put on it to get the right appearance of course.

The round knob we were discussing that I posted above isn’t included, but just for reference… with the little base it’s almost as tall as the square knobs.

Unfortunately once I cut that base off it’ll be noticeably shorter than the square knobs, which isn’t right. Maybe it’s not as close a match as I’d hoped. But I’d the best I’ve got for now, and it didn’t cost me a dime because the surplue store guy gave it to me for free since it was only a buck for two and he saw me digging through a box full of a thousand knobs for a half hour to find it. :slight_smile:

17

Oh and note that if you look at the last GB2 trap pic above, since you’re looking directly at the face of it, maybe even with a zoom lens, the square knobs don’t seem very tall, but if you look at the GB1 trap pic from the movie above, or the screen used trap reference pics, the square knobs look a lot taller, and more like the ones I posted. I don’t know that they’re an exact match but they’re close enough I guess.

18

i used similar square knobs for my traps…they r great

Griff

19

We’re all just patiently awaiting your thread on how you just noticed that the ectomobiles in Ghostbusters and Ghostbusters 2 are different.

20

Well you should be! I don’t see a thread enumerating the differences for people, and it’s easy to miss certain things. For example, I’m pretty sure the Ectomobile was a 1959 Cadillac Miller-Meteor Futura, and not a 2003 Subaru Outback.

:slight_smile: