Loose knob on DFC 90

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   My vertical speed knob fell off.I put it back on but it is loose.
It appears to have a very small set screw which is missing.
Unable to locate it.
Does anyone know the size of the set screw or a source for a replacement knob.
I guess I could buy a small one and drill an appropriate hole in the know to make it work but I would prefer the first two options.

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Qwerty123 Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 07 Aug 2023 Location: NH Status: Offline Points: 6	Post Options Post Reply Quote Qwerty123 Report Post Thanks(0) Quote Reply Topic: Loose knob on DFC 90 Posted: 28 Aug 2023 at 9:07am
	My vertical speed knob fell off. I put it back on but it is loose. It appears to have a very small set screw which is missing. Unable to locate it. Does anyone know the size of the set screw or a source for a replacement knob. I guess I could buy a small one and drill an appropriate hole in the know to make it work but I would prefer the first two options.