Forte' audio model two preamplifier

[cdebien]

@ GTKAUDIO

25 years ago I owned an Oracle turntable. Today, I find Systemdek IIx.

 

[GKTAUDIO]

Ah, my misunderstanding.
Hope you find the source of your hum.

 

[niss_man]

Wow. Rayma you are a genius. No noise when I spin the record manually. It's appear noise is generate by the motor itself.

Now... How to solve this problem? A faraday enclosure around the motor or simply replace the belt?

cdebien. If your turntable uses an ac motor, try replacing the motor capacitors, they could be old and out of spec. This cured hum in my old turntable. Make sure the capacitors are of original values.

 

[rayma]

No noise in reference to #35 post.

Then there's no electrical noise, just mechanical noise. Sometimes the motor has a rubber suspension.
If the motor mounting arrangement seems normal, replace the motor capacitor(s) next. If no help,
replace the belt. If no help, service/replace the motor.