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jascha · 16th Sep 2018, 8:37 am

I have not let it run enough to see if it gets too hot. I shall check. All I can say is that even after relubrication it seems not to run too freely when giving it a spin. It tends to stop after a few turns. The sinteered bearings on either side seem quite stiff to move about. Maybe these are factors that contribute to the consumption if there’s resistance? I still believe that this model how ver needs a 50Hz sleeve made for it as otherwise why would it have a sleeve already on the capstan shaft for just 60Hz operation where it originally resided and was intended to be used? The thickness of the sleeve is a giveaway as it seems quite thick compared to another machine I have that has also a capstan sleeve but was built to be used internationally (has a voltage selector 110-240v). The machine in question has no voltage selector but has a thick capstan sleeve (thicker than needed for 50-60Hz compensation).
Thanks again.

16th Sep 2018, 8:37 am	#7
jascha Hexode Join Date: Nov 2005 Location: Kent, UK. Posts: 332	Re: Valve tape recorder AC motor question I have not let it run enough to see if it gets too hot. I shall check. All I can say is that even after relubrication it seems not to run too freely when giving it a spin. It tends to stop after a few turns. The sinteered bearings on either side seem quite stiff to move about. Maybe these are factors that contribute to the consumption if there’s resistance? I still believe that this model how ver needs a 50Hz sleeve made for it as otherwise why would it have a sleeve already on the capstan shaft for just 60Hz operation where it originally resided and was intended to be used? The thickness of the sleeve is a giveaway as it seems quite thick compared to another machine I have that has also a capstan sleeve but was built to be used internationally (has a voltage selector 110-240v). The machine in question has no voltage selector but has a thick capstan sleeve (thicker than needed for 50-60Hz compensation). Thanks again.