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brigham wrote: ↑Wed Aug 28, 2019 8:34 am I am aware of alternative versions of these, and I also have 'Starlet', which I imagine is an earlier type, not having the variator fitted.
I'll have a look at the variator motor on my 'Lucky Throw' when I get home tonight, and post the final RPM for you.
There are two different cam profiles, one with four evenly-spaced notches, and one with unequal spacing. They are probably just developments over time, though, and not specific to each version. The machine runs fine without the variator assembly; it just means that the sequence is shorter, giving small boys in the '60s a better chance of working it out!

slotalot wrote: ↑Wed Aug 28, 2019 8:52 pm Sorry to hear you are struggling with the motor speed, when I found you the Lucky Throw machine I recommended a 12 rpm motor thinking it would be ok for the job, I think the original Crouzet motor would have been 10 rpm, so not a lot of speed difference ?? I think a 6 rpm would be too slow??

"Crouzet" motors of this kind were only produced in a fixed speed range, starting with 1 rpm / 2 rpm / 3rpm / 4 rpm /5 rpm / 6 rpm / 10 rpm/ 15 rpm / 20 rpm / 30 rpm / 40 rpm / & 60 rpm.

a new motor with the same footprint would cost you about £90 today,
second hand motors in working order are rare, but they do come up from time to time.

best of luck with the project.

brigham wrote: ↑Thu Aug 29, 2019 8:22 am The variator motor turns at 5rpm. This is the left-hand motor in the inside photograph, the one between the odds adjuster and the main sequence controller.
The speed of this variator will have no effect on the speed of the game. The right-hand motor controls the game length. It runs at 6rpm, and so the game lasts 10 seconds.
The rate at which the symbols change is controlled by the third motor; the one which drives the wiper around the ring of contact posts at the bottom right of the cabinet. This is the device that gives the machine its familiar 'clack'.
The variator cam seems to come in two types. One has eleven (not four-my defective memory) equally-spaced notches, the other has four, a gap, five, and another gap.
The only purpose of the variator is to lengthen the gap between the main controller starting the selector (which is a fixed point in the game) and the selector actually starting. Otherwise, the selector would move a fixed number of 'clicks' every game, and the sequence could therefore be calculated.
I would leave the variator until last. Simply strap the contacts together until the rest of the machine is running correctly, and attend to it later.

brigham wrote: ↑Sat Aug 31, 2019 10:07 am I don't have any diagrams for these machines, but, unlike the earlier 'uniselector' types, you don't need a diagram unless the original wiring has been tampered with.
The wiring on these is to a very high standard, and I'm convinced that either Arthur Jamieson or Mr. Binns had GPO experience. It would be best not to re-wire anything that hasn't been interfered-with by outsiders.
Can you post a picture of the inside of the machine? The back panel with the door open, the back of the door and the back of the door with the coin acceptor flap open?
These machines run entirely on a logical basis. There is no random element. Everything which takes place during a game cycle does so in strict order, so anything NOT happening can easily be traced simply by working logically.
Once you have the electric supply, and the main controller turning, the rest will follow.
(I avoid working late at night. You need to be clear-headed!)

special when lit wrote: ↑Sat Aug 31, 2019 1:15 pm This might be some help. With many thanks to Dickywink on here.
Jamiesons Starlet information Manual V1.1.pdf