13 Oct
2000
13 Oct
'00
6:35 p.m.
At 18:54 13-10-2000 +0100, Tony wrote:
The spindle motor circuit on an RL is a little more
complicated than just
an SSR. From what I remember, a signal from the sector transducer is
compared to a divided-down version of the clock from the controller. The
result is used to control the speed of the spindle motor.
<snip>
Thanks, Tony. Lots of good info I'd either forgotten about or neglected.
What I'm trying to remember now is why I thought the RL02 spindle drive was
a simple on/off... Must have been thinking about a different unit...
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Bruce Lane, Owner and head honcho, Blue Feather Technologies
http://www.bluefeathertech.com // E-mail: kyrrin(a)bluefeathertech.com
Amateur Radio: WD6EOS since Dec. '77 (Extra class as of June-2K)
"I'll get a life when someone demonstrates to me that it would be
superior to what I have now..." (Gym Z. Quirk, aka Taki Kogoma).