2. analog
  3. 131114-2439

Help... my turntable is alive!

I am hearing a heartbeat through my turntable between tracks, and also when the music is very quite in the song's track. This noise is at 33 BPM in sync to the turntable rotation. It's very quiet unless of course the volume is turned up, but can clearly be heard. I don't think its rumble as it has a distinct "heartbeat" sound.

My turntable is a Basis 2500 with a Graham 2.2 arm and a Goldring 1042 cartridge set at 1.70 grams tracking force. Any guesses here? Is the bearing on the turntable shot?

Thanks
koestner

Showing 2 responses by dover

dover
2,295 posts
 
The cartridge comes very, very close to the record when playing and a sharp warp could be the "bottoming out" heartbeat noise. Certainly I need to inspect this issue for more evidence.
Looks like the suspension on your cartridge may have sagged over time, it shouldn't be that close to the record. You might want to check this out.

dover
2,295 posts
 
The "heartbeat" sound is still present, but only after the first few minutes and then going away a few minutes after that. I have tried several different records, but still the same effect.
Koestner

Have a look at the arm lift and check that there is clearance between the arm lift and arm when the record is playing. I have had examples where the arm lift is slow to go down ( would explain your results ) and/or the arm lift is not level with the record and varies in height across the record, resulting in contact with the arm whilst playing.. 

More to discover