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Search "Mark Kelly"

Posted by Lew (A) on January 17, 2017 at 07:39:08

In Reply to: RE: What type of controls work with this Garrard 401? posted by Ugly on January 16, 2017 at 20:28:29:

Mark is/was a Garrard 301 guy, and he knows more about turntable motors and how to drive them accurately than anyone I aware of. You might search these archives for his posts on the 301 motor; they would apply to your 401, as well.

I am no expert on Phoenix products, but so far as I know, the Roadrunner is "only" a tachometer for displaying platter speed. If you have both the RR AND one of their turntable power supplies, Falcon or Eagle, you can feed the output of the RR into either of those and thereby achieve a feedback control of platter speed. (The Falcon or Eagle increases or decreases platter speed, as needed, based on info it receives from the RR.) The Falcon does not put out enough power for the Garrard motor; you need a 25W Eagle, for sure. But this begs the larger question about whether those devices (RR + Eagle), which are designed to drive AC synchronous turntable motors, would be appropriate for the induction motor in your Gerrard. This is where you might benefit from reviewing Mark Kelly's old posts here.

Edits: 01/17/17

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