Seeburg A2
Adeline Lynady
One source of Wallboxes is eBay. There are many other brands besides Seeburg, but I personally like the appearance of the Seeburg wallboxes. The two common models are the Seeburg 3W1 and the Seeburg 3WA. The 3W1 is a 100-selection wallbox and has one row of letters and one row of numbers. The 3WA is either a 160 or a 200 selection wallbox and has two rows of letters and one row of numbers. The only difference between the 160 and 200 versions is a removable stop that prevents a couple of the song catalog pages from turning. The 3W1 is considered by some to be the simpler of the two due to the lack of the dreaded DCU.
Problems that I had with mine included: 1) the rotating arm on the selector wheel being misaligned, 2) a leaf switch slightly bent, 3) dirty contacts on another leaf switch. The Seeburg manual will guide you through many of the things to look for.
The fuse is important. I shorted something and blew fuses twice while diagnosing the wallbox. Technically it might make sense to fuse the 25 VAC output of the transformer in addition to the mains input, but for me the mains input fuse in the Corcom filter worked just fine and kept anything from getting destroyed.
At the very top of the schematic is a switching regulator. I like switching regulators due to their efficiency and I often include this particular regulator in my projects. It allows us to power the pi and the hat from the same 25 VAC that powers the Seeburg.
The first revision had a few minor mistakes and lacked the inverter gates between the IO expander and the relays (you can imagine my surprised when I hit the power switch the first time and all three coin solenoids engaged at the same time). The second revision fixes this issue, as well as adding a few minor improvements, like jumpers to tie the NO lines of all three relays together.
I purchased a Wurlitzer 5250 wall box a year ago and not been able to have it operate at all. The seller refuses to stand behind his product but I am determined because of the time and money I have into this I would like to have it properly operating. Are you able to take on this project? I have the loaded MP3 player and transformer.
763 442 6121
A couple of days ago i bought a wallbox seeburg 3wa. I started with your project.
I am not so good with the RPI 3b but i was able to download the SW from the github.
By checking the SW I had some issues with the print command in the seeburg.py script the following signs ( ) were not used.
The questions i have: Could you verify if the SW on the github is the right and working SW? Thank you very much. Regards Sebastian Vos
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