I use 2 X Graf Tumblers and swear by them. One has a more course media for the really stubborn parts, and the other for a more shiny finish.

https://ssaa.org.au/stories/reloading-graf-case-tumbler.html

Ultrasonic - I bought one from eBay over 10 years ago and it works fine. It is the largest capacity I could find. Still need to be used in an area away from the workshop as it is VERY noisy, but I use it all the time.

Tumbers, in Australia you are limited. Locally there is only one brand available. But it works for me. I have had two going most of the day for the last two weeks. I do not over load, a generous handful of parts is enough. Walnut media works for me, but it will stain any plastic parts (slingshot tips). I do not use additives, they have not worked for me in the past.
I do not put in large brackets (pop bumper brackets). Things need to turn with the media, big stuff just sits and bangs on the bottom
Remove any grease on your parts, grease will shorten the life of the media
Media will last for years, even with heavy usage
I bought my tumblers and media from the local gun shop

Lyman Turbo, is what I use

I tried an ultrasonic cleaner. Did not work for me
Plastic parts I either replace, or put in the sink and scru with a toothbrush. Remember to count black stand-offs before you put them in the sink as they can go down the drain

Hey all,
I am finally getting started with pinball restoration after many years of false starts. So, a couple of questions about tumblers please. What would you buy if you had your time over again or what will your next tumbler be. How important is an ultrasonic cleaner. Which one would you get ?
Thanks in advance,
Dan

The february update is a large one.
There are 137 images added to the archive, 35 zip files updated or added and 50 pdf files added.
The set for Bally - Twin Win is completed.
A lot of cards are added to Chicago Coin - Hi-Score Pool.
I've received a nice scan for the Gottlieb - College Queens cards.
Relay strips are added to Gottlieb - Far Out.
Gottlieb - Wagon Train and Watch My Line are updated with the help of some new scans.
I've added Gottlieb - Whirl-Wind, Wishing Well and World Beauties.
A request came for Mills - Professional Baseball cards.
Carny Priest told me there are a lot of Stern files available from the Pinball Universe.
Most of them are in German.
I've downloaded the files and added them to the website.
He also updated some of his own files.
Stern - Nine Ball files are added for the Self-Test and Coin Settings, Solenoid and Switch identification, Switch assignments.
Stern - Seawitch now has a file for Self-Test Display Numbers card.
United - Wisconsin has been added.
A lot of Williams STD labels are added to the website.
A new file has been added for Williams - Vagabond.
That is all in a nut shell.
The full list of changes is below.

Enjoy and have fun,
Peter
http://www.inkochnito.nl

29 february 2024 changes
New made or updated card files:
Bally M-1509 cards added to zip file
Bally Twin Win cards added to zip file
Chicago Coin Hi-Score Pool cards added to zip file
Gottlieb College Queens cards added to zip file
Gottlieb Far Out relay strips added to zip file
Gottlieb Lightning Ball cards added to zip file
Gottlieb TKO zip file corrected
Gottlieb Universe cards added to zip file
Gottlieb Volley cards added to zip file
Gottlieb Wagon Train cards added to zip file
Gottlieb Watch My Line cards added to zip file
Gottlieb Whirl-Wind zip file added
Gottlieb Wishing Well zip file added
Gottlieb World Beauties zip file added
Gottlieb World Champ cards added to zip file
Mills Professional Baseball zip file added
Stern AC-DC German cards pdf file added
Stern Aerosmith German card pdf file added
Stern Avatar German card pdf file added
Stern Avengers card pdf files added
Stern Batman 66 German card pdf file added
Stern Deadpool German card pdf file added
Stern Elvira House of Horrors card pdf files added
Stern Game of Thrones German card pdf file added
Stern Ghostbusters cards pdf file added (special thanks to Carny Priest)
Stern Guardians of the Galaxy German card pdf file added
Stern Iron Maiden German card pdf file added
Stern Iron Man German card pdf file added
Stern Jurassic Park card pdf files added
Stern Ledzeppelin card pdf file added (special thanks to Carny Priest)
Stern Metalica German card pdf file added
Stern Mustang German card pdf file added
Stern Nine Ball Self Test and coin settings card zip file added
Stern Nine Ball Solenoid and Switch Identification card zip file added
Stern Nine Ball Switch Assignments card zip file added
Stern Rush cards pdf file added
Stern Seawitch Self Test Display Numbers card zip file added
Stern Simpsons fuse label pdf file added
Stern Star Trek German card pdf file added
Stern Star Wars German card pdf file added
Stern Star Wars Promo card pdf file added (Special thanks to Carny Priest)
Stern Stranger Things cards pdf files added
Stern Teenage Mutant Ninja Turtles cards pdf files added
Stern The Beatles German card pdf file added
Stern The Mandalorian cards pdf files added
Stern The Mandalorian Promo card pdf file added (Special thanks to Carny Priest)
Stern The Munsters German card pdf file added
Stern The Rolling Stones German card pdf file added
Stern The Walking Dead German card added to pdf file
Stern Tron German card pdf file added
Stern Wrestlemania cards pdf files added
Stern X-Men cards pdf files added
United Wisconsin zip file added
Williams Road Kings German card added to zip file
Williams STD-62 label zip file added
Williams STD-222 label zip file added
Williams STD-270 label zip file added
Williams STD-282 label zip file added
Williams STD-283 label zip file added
Williams STD-284 label zip file added
Williams STD-285 label zip file added
Williams STD-324 label zip file added
Williams STD-329 label zip file added
Williams STD-331 label zip file added
Williams Vagabond zip file added
Williams Wonderland card added to zip file