Quoted from awesome1:

You can download different TZ mixes from the Pinsound website. Most are terrible in my opinion, but the sound designer for TZ has released the original stereo package, but surprisingly doesn't include the Golden Earring Twilight Zone song... because it wasn't originally going to be in the game until the DCS sound board wasn't ready in time for TZ and they had to make some changes is my understanding.
The process of editing or creating your own sound files is for another discussion and detailed info can be found online and many programs available to do this. Pinsound let's you replace any original sound file, which is fantastic. You can upload to Pinsound via USB, so no ROM burning necessary. You no longer use the original sound board. Pinsound itself can have a bit of a learning curve once you dive in if you don't just use one of the prepackaged sound packages.
I basically edited some of the sounds for my own personal tastes, adding a little more bass, turning up volume, etc. I used some of the original and some from the Granner mix.
I also have done the 5 1/4" speaker backbox upgrade and changed out all speakers and wired for true stereo and also have external subwoofer.
Unfortunately the Rod Serling callouts are all pretty low quality because of audio compression used for original sound board and no original recordings are available anymore, so just making them louder only helps to an extent. Others have tried to use TZ TV show replacements, which is a huge undertaking and as far as I know, none have been released to the public. There was also some talk about using a voice actor to redo the callouts, but I also don't think this has been done.

Quoted from awesome1:

They do have the original sound mix available to download on the Pinsound website.
The pinsound plus board has built in equalizer so you can tune the audio that way as well.
I would definitely recommend upgrading the speakers, especially if they are still the originals from 1993.
Even “entry” level, inexpensive speakers from places like Parts Express would offer a nice upgrade even if using the original sound board.
Especially if keeping the original sound board, make sure you match the ohm ratings of the original speakers. TZ speakers are not wired in a “traditional” manner from the factory. You could rewire them if going to stereo using the pinsound board.

Quoted from jetmechinnc:

It’s a matter of preference, but for price, quality, ease of installation and support, I love flipper fidelity. I have put them in just about every Bally/Williams games and a few stern’s that I’ve owned.
I have pinball pro in my space shuttle because they support older games that have a 6X9 speakers and sub, which is great. I have pinwoofer in my stern JP and it is amazing, but they jumped a full $100 since I last bought them so it’s hard to recommend them for the older Bally/Williams games, especially without a pinsound board installed.
Flipper fidelity speaker kits are great and they include anti-rattle tape and a balance knob that can be mounted in the back box or coin door area with an extender cable that is hard to beat. I put them in my twilight zone and am very happy. The bass can be turned up to rattle the cabinet as a little “shaker motor” could and that’s perfect for me.

Quoted from ParisPinballAdct:

congratulations, fantastic find!!! content pour toi, bienvenue dans le club TZ (aka, le meilleure flipper de tous les temps
Guillaume

Quoted from LTG:

Unless you see an individual piece on Ebay, the full set might be your only option.
http://www.planetarypinball.com/mm5/merchant.mvc?Screen=PROD&Product_Code=PPS-31-1765-COMP
LTG : )

Quoted from LTG:

Fair enough.
Williams thought it would rival TAF in numbers built and made them for 9 months. Distributors thought the next Lawlor pin after TAF would sell great too. And operators probably did too. So a lot were sold.
On the street it was up against people working harder for less money. And coin op entertainment often forgets the entertainment part. At that time a lot of players wanted entertainment, not a job.
So TZ performed poorly in earnings for operators. Which is why in 1999 when Williams closed. There were a lot of TZs in good shape available at a great price.
LTG : )

Quoted from TigerLaw:

I’m finding nothing. That IGT slot topper is the best I’ve seen and I can’t find one available any where.

Quoted from DuffysArcade:

I live here in Germany and I'm in the same boat.
I originally ordered on 15 September, waited 5 weeks and nothing, so I emailed them. They emailed back that they had the parts and were slowly getting the soldering started. That was back on 25 October.
I sent a follow up message to them about 2 weeks ago and I've heard no reply. They are probably inundated with orders and messages from inpatient TZ owners.

Quoted from DuffysArcade:

This was the last response I received on 25 Oct 2021. I have heard nothing since.
-------------
On Mon, Oct 25, 2021, 16:33 Outlook Teresa <[email protected]> wrote:
Hello, thank you for your order. We have had problems with parts for a long time, but they have arrived and we are slowly starting to solder. We'll get your board on Monday.
Lg
--
Gesendet über Outlook Email App für Android

Quoted from funworldgr:

spacer isn't original, if we remove the space clock doesnt work, my clock needs to be in an angle in order to work correctly.
locksmith despite I don't see much play front to back of forth, I will check how to apply the screw in the back of the block in order to push it near the clock hands.
bakerhillpins I will apply all advices on my third broken clock!
ps. I made a new pickup today, and I noticed all three pins are made between march and october of 1993, but they have a difference in the bumpers section.
first one hasn't any holes for posts
second one has two holes and two posts
third one has two plastic caps to fill the playfield holes.
I guess owners are making a lot of complaing and factory couldnt decide what to do.. I read the story but couldn't believe that I will in my eyes all variation.
[quoted image]

Quoted from BertoDRINK1:

I have a brand new prototype mini playfield. It was ordered by mistake, it's going to end up as wall art now.

Quoted from BertoDRINK1:

I have a brand new prototype mini playfield. It was ordered by mistake, it's going to end up as wall art now.

Quoted from Miguel351:

I sent him a PM a couple weeks ago. No response. I hope everything's ok.

Quoted from dmacy:

Yes not my pattern but kind person posted it there. Here:
https://pinside.com/pinball/forum/topic/imagine-if-you-will-a-twilight-zone-playfield-swap/page/3#post-6749888

Quoted from jid:

Will do right after lu

If you think it is just the optos, you can borrow one from the left or right spiral to see if replacing it works. It may. Also look at the opto board. I recently looked at mine and found out it was shot so I ordered a new one. This is a common fault point I hear. And I’m learning. So definitely look at the board to make sure it looks ok. Like no leaking capacitor (like mine is!)

Quoted from DumbAss:

2x 7-opto boards indicates a prototype Twilight Zone. The wiring and connections for the custom 10-opto board in the manual does not apply here.

Quoted from Gorgar666:

This one is a properly Williams licensed translate from planetary Pinball. The license holder.

Quoted from Coyote:

The sign was removed because it was a ball trap.
The yellow lamp at the back of the powerfield - in the same location as where the sign is mounted - is your Left Spiral lamp.

Quoted from LTG:

No one knows. The factory just kept moving. Some early games had the translites with the stars cut out, and some didn't.
TZ was made over 9 months and had a lot of differences during the whole run.
LTG : )

Quoted from Gavino:

Ordered one in Jan 2021 and never received it. Every time I enquired I was told it would be shipping in around two weeks but it was always bull. Trying to get my money back now.