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The Selection Accumulator; a Jukebox's Brain technology connections



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The Selection Accumulator; a Jukebox's Brain

The Selection Accumulator; a Jukebox's Brain

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#Selection #Accumulator #Jukebox39s #Brain
The Selection Accumulator; a Jukebox's Brain
technology connections
ดูวิธีการทำเงินออนไลน์ล่าสุดทั้งหมด: ดูเพิ่มเติมที่นี่
ดูวิธีการทำเงินออนไลน์ล่าสุดทั้งหมด: ดูเพิ่มเติมที่นี่

44 thoughts on “The Selection Accumulator; a Jukebox's Brain technology connections”

  1. Astute viewers will notice that it's been much longer than a week since the last video.
    In light of everything going on in the real world right now, I hope this can serve as a meaningful distraction. I, as I'm sure is the case for many of you as well, am unsettled by a lot and it's hard to work, or even just think. I have never felt that I've been an anxious person, and now I'm learning what real anxiety is.
    This pinned comment surely doesn't mean much, but to everyone watching; please be safe. Make as many technology connections with loved ones as you can, and keep your chin up.

  2. I've been staring at these schematics for hours ,and my brain hurts. This is something I remember from trying to sort out an electro mechanical injection moulding machine. And it was in Italian. I feel Alec's pain on this one.

  3. Hi there, great series of videos. A subject for you to explore maybe. A bank of capacitors used as a memory! Back in the dark ages 1969 I had a machine to service from a company called “Uster- Zelweiger” or maybe the other way round. In the cotton mill laboratory they had a yarn tester that recorded the thick and thin faults of cotton being spun. It recorded by a bank of rotary switches driven by a small electric motor, each switch had maybe 20 contacts connected to 20 capacitors, there were maybe 8 switches on the common shaft. The switches were Bakelite filled with oil. It was called “ Uster evenness tester”
    I can’t find any references on the net.

  4. To me, it makes perfect sense to not call the sites a and b, because from the jukeboxes point of view, you cant tell what site a and b might be. That totally depends on how the disc is putted in. If you flip it, sites are swapped.

  5. Wow, just wow… I love love love this and the other jukebox video! I had a embarrassingly under appreciative view of the pre chip era of how these things worked… This, in my opinion of course, is actually more sophisticated for its time with basic circuitry than i ever could have imagined. What skill these engineers and technicians must possess to make everything go in tandem with each other… I immediately thought of elevators as pushing the call button and relay switches go on and off to make the thing function properly… amazing… such a well communicated topic… thank you so much for the mind boggling fun! New respect for old technology!

  6. GREAT video. As a former mechanic/electrician, i followed your descriptions very easily. My question is what will happen if you select a song that was previously selected by a previous customer? Will the machine 'reject' the selection or will it "steal" a credit and only play the song once for two different credits? this may have happened in say a busy bar/restaurant where many different customers choose songs.

  7. Why is it Side 1/2 instead of Side A/B? Because the side of the record that is played when you select Side 1 could be either Side A or Side B, depending on how the record was placed in the carousel. If the machine called it Side A, the person stacking the carousel would need to put the record that way round; by calling it Side 1 they decoupled the behaviour of the mechanism from the labelling of the record. (It also allows double-A-sides to be included without the machine getting confused.)

  8. I've seen some of your videos through YouTube's suggestions over several months occasionally and after a few videos I decided to subscribe. Well after powering through many of your videos over several days (all of which i enjoyed) I found this two video series to be my favorite by far. From the actual item in question to the flow and descriptions these just stood out to me and became my favorites. Keep doing what your doing!

  9. So if i understand right, this jukebox doesn't play the records in order they are selected but in order they are on the carousel? I remember other models also played records in the order they are selected.

  10. Never gave it a thought about how the old juke boxes stored songs. Can remember going to a large diner that had little juke boxes at each table. Appeared to take a long time to listen to the songs that you selected on a busy night. Heard on one of the TV shows that buy & sell older items that juke boxes have lost value last 10 years. When my dad purchased our old house back in 1955 owner left a jukebox that played 78 records. I spent hours taking it apart trying to figure out how it was built. I was only about 8 years old.

  11. In my opinion, this machine using 1 and 2 as side labels instead of A and B makes sense, since they refer to different objects. You can place in the record arbitrarily both ways. If for some reason you prefer the track that’s on B side, just revert the record and it’ll play with position 1.

  12. It is a computer. Computers should compute but what is to compute? To reach a result one must get variables and deal with 'data structure'. Can a computer that just compare things calculate? Yes, it can – all you have to do is write all calculations on a table (just as Richard Feynman explains on a video somewhere). I must note, however, that we use the word "computer" in the sense of "general purpose automated computer machine". In the past, a computer was someone who did calculations (like those under Feynman during the Manhattan Project). In the past, women did this, mostly, and the word computer, in Spanish is feminine. BTW, that's why a woman was responsible for keeping the Mark I running and found the first computer bug. The Mark I, btw, was not a general purpose computer.

  13. One way you could look at this is that this entire unit IS a giant computer chip. Modern computers are still essentially nothing more than a whole BUNCH of microscopic relays – and the order of operations is done not by physical movement of switches, arms and solenoids but by variations in voltage, resistance and signal wave types – and the selection process from button to rotating selector arm replaced with lines of code instead.

  14. I have the Wurlitzer 3300 and I need a little help understanding how to fix it, due to a moving situation I currently do not have it with me but I would like to know if I can get it contact with you so that when I do get it back in my possession I can properly fix it, thanks

  15. The 3100 was the new one when I worked on them. I saw some difference between the one I worked on and this one. The biggest problem we had was that most of the Jukebox were in bars, drunks think everyone and everything drink. And when they put there drinks in the coin slot things stop working the way they should. Also drinks in the buttons gets sticky and they don't work. Remember the way the buttons work with the relays, what happens when all the drinks get in the buttons and the springs can't push them back out, because the drunks thought that the Jukebox needed a drink. They get very sticky and don't pop back out. So you can say that if you give your Jukebox drinks they get drunk and do stupid things. Then I had to go out and get them to work again. No Coffee didn't help! LOL!

  16. One thing that wasn’t addressed but was alluded to in the previous video: how does the selection accumulator store multiple subsequent selections?

    After watching this video, my suspicion is that the selection accumulator arm simply pops the pins for all of the subsequent selections, and then the record selector plays them all in alphabetical order rather than in the order they were selected, since there doesn’t seem to be a way for the mechanism to indicate the order in which they were selected.

    Ergo, if the machine is currently playing B1 and someone walks up and selects T1, if I follow behind that person and choose F1, my selection will play before theirs. I feel like I’ve seen that “out of order” behavior before but never thought to pay attention to the letter values of what was playing.

    Another thing: some restaurants have small jukebox selectors at individual tables. Thinking about how that would work, I would expect that inserting a coin and pressing the buttons would trigger the same electrical connections through the credit solenoid and selection accumulator relays as pressing the buttons on the main jukebox itself. If I ever run into one of these again (and it’s not a newfangled replica solid-state faux jukebox), I’ll have to go stand next to the main jukebox unit and have a friend select a song on the remote control and listen for the action of the selection accumulator. Although I do wonder how the machine would handle concurrent selection attempts from multiple remote control units…that could get messy!

  17. While playing a record, you can keep dropping quarters and making more selections, how does it play those selections in the order they plugged in? Or does it just take the next one it finds on the pin wheel?

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