You may want to check that and make sure it checks to factory spec.

Capacitors aren't perfect for this, not only is the shift not perfect, but variations in the caps value can create variations in the degree of the shift. Most turntables, yours included, use a capacitor to cause this shift. The best way, as I understand it, to reduce motor noise is to ensure that a perfect sinwave is sent to the motor, and that the phase shifted wave is equally as perfect, including a perfect shift. I wont try and quantify it, but I to have felt its as big if not bigger than many other changes we make such as cartridge or tonearm. I didn't think the motor was directly connected to the idler wheel in any way, just through a belt.ДЄs for motor reduction, most people find that a reduction of motor noise has a pretty profound effect on rumble noise and thus background noise. This would imply to me that there is no more of a direct connection of the motor to the platter than a belt drive. It was my understanding that the Thorens TD124 Idler drive still has a belt between the idler drive wheel and motor. Note: the Garrard I am using is old, from the time that the voltage in the Netherlands was 220V now the voltage in almost whole Europe is 230V so this is maybe the reason in my case it works fine.ДЇirst, I'm a little confused, but I am not familiar with Gerrard turntables either.

Probable the trick is well known but I could not find it so easy on this forum. I was very exited of this improvement and therefore like to share this with you. I tried it several times, about third was cut.Д«ut now the strange thing with my stethoscope I heard a reducing of about a third of the vibration noise but after listening records the rumble was reduced far more, at least 2/3 and almost not hearable any more. Then I used my stethoscope (ideal for detecting vibrations, even a toy version works!) and noticed indeed a reduction of about a third of the vibration noise. the motor stopped with some noise so maximum cutting of voltage is only about 10 degr. By turning the wheel from the dimmer at more than 15 degr. And placed it between the mains of the turntable. I took a simple small light dimmer, cheap version в‚¬12,- suitable for halogen as well.

Loricraft-Garrard does it with the 301-401-501 types and I understand Linn does it with some types of powersupply (high voltage to start the platter and on speed cutting the voltage). After research I discovered that might help. But I remembered me an article about reducing the voltage on a AC-motor to reduce vibrations. I was therefore in the process of replacing my synchronous motor with a more silent DC motor. If the motor vibrates, and the synchronous motor from my old Garrard does, so the vibrations is detectable, hearable. With an idler drive you always have the problem that the idlerwheel and therefore the motor makes a direct contact with the platter. I am using a idler drive TT witch I improved in many ways like the central spindle bearing to make it more silent and create a black background. Cutting vibrations from a (Garrard) synchronous motor.

Garrard zero 100 idler wheel