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Did Starturn 4's circa 1990 have a choke?

Posted: Sat 12 Aug , 2023 22:34 pm
by rasp
Did Starturn 4's circa 1990 have a choke?

I have a machine that has no choke and I can not find a matching drawing for it.

It has a green Control Techniques ASP-5 spindle board and what I think is an opto isolation 0-10V card.

Can anyone shed light on this and should there be a choke.

There is also a small black device
ASP-5 Spindle Drive.jpg
ASP-5 Spindle Drive.jpg (155.69 KiB) Viewed 20607 times
Small Black Part.jpg
Small Black Part.jpg (52.44 KiB) Viewed 20607 times