Replacement power cabling for old Garrard 301 turntable


This is a different application from most power cable installations!  I want to minimise the transmission of mechanical vibration by using more flexible cabling.

Dating from the 1950s, the Garrard 301 contains no electronics.  It has a large motor which is suspended by six springs from the chassis.  The motor spins at almost 2,000 rpm and is hardwired via a switch mounted on the chassis.  A light spring is installed to isolate the middle of the cable run from the chassis.

The wiring forms a potential vibration path linking the motor to the chassis, and the chassis to the surroundings.  There is a ground wire to the motor.  The original wiring is quite old and stiff, like me.

I have read that the motor is a shaded-pole synchronous AC induction motor, and it needs a very modest 15 Watts.

I think I should be looking for a very flexible, lightweight 3-core multi-strand cable, maybe something like steam irons use.  What are your thoughts?

richardbrand

Showing 2 responses by noromance

I have 3 x 401s and in all of them I do not use a makeoff block or IEC receptacle. Like Glenn’s, the cable simply hangs down from the motor. I do have foam blocks under the cable as it runs off the rack edge.

Have you considered wiring to a makeoff block? That way you can use flexible and thinner insulated but non-sheathed wire from the motor to block.