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#1 |
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diyAudio Member
Join Date: Jul 2005
Location: D-55629 Schwarzerden
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The 115 VAC Crouzet uni-directional synchronous motor without type number has only one phase (only two instead normally four leads and no phase shift cap necessary)
The "ON" direction isn't clear - both directions are possible. To get always the right direction, an internal mechanism is present to determine the right direction. About Crouzet Automatismes - Accueil isn't to find replacement I want to know a replacement type - Thank you very much |
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#2 |
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diyAudio Member
Join Date: Jul 2005
Location: D-55629 Schwarzerden
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here the attachement for the mech. data:
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#3 |
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diyAudio Moderator
Join Date: Jan 2003
Location: Near London. UK
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It is, as you say, a synchronous motor. Probably 24 pole. If it does 250rpm, then it's definitely 24 pole. If so, you could replace it with the ubiquitous Philips/Premotec motor now distributed by McLennan. You'll need to add a phasing capacitor, but that's hardly a problem. Your more important problem is whether the shaft diameter is the same.
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The loudspeaker: The only commercial Hi-Fi item where a disproportionate part of the budget isn't spent on the box. And the one where it would make a difference... |
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#4 | |
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diyAudio Member
Join Date: Jul 2005
Location: D-55629 Schwarzerden
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Quote:
The motor here runs with approximately 580-610 RPM, because the belt is on the outsite of the platter edge (see photo and the milled groove for the belt) and not at a small inner platter like Linn. |
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#6 |
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diyAudio Member
Join Date: Jul 2005
Location: D-55629 Schwarzerden
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Here the additional photos from this motor modell
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#7 |
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diyAudio Moderator
Join Date: Jan 2003
Location: Near London. UK
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Removing a pulley isn't usually too difficult. It's doing it without bending the motor shaft that's tricky. Of course, if you know you won't use the motor again, that's not a problem. People used to use spoons as levers, but I never liked that technique. What might work nicely would be some improvised jacks. An M4 threaded spacer with a hexagonal headed bolt going into it would expand as the bolt was undone. If you had three of these evenly spaced under the pulley, you could ease it off by undoing each of the bolts a little at a time.
For putting pulleys onto motors, I've used my drilling machine. Put a piece of steel under the motor shaft (to support it), and a larger piece of wood to hold the motor square, adjust the chuck so that the jaws disapppear inside, and then use the chuck to drive the pulley gently onto the motor shaft.
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The loudspeaker: The only commercial Hi-Fi item where a disproportionate part of the budget isn't spent on the box. And the one where it would make a difference... |
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#8 |
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diyAudio Member
Join Date: Jan 2002
Location: Belgium
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Aren't Transrotor of any help?
If not, then why don't you contact the actual manufacturer, Michell Engineering in England?
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bring back dynamic range |
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#9 |
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diyAudio Member
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Wow I just drop my pulleys into boiling water for five minutes, they slip straight on with a gentle thumb push.
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