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
A new malady....'cart clunk". *L*  Wonders never cease....

I find it amusing that all technologies, old and new, seem to exhibit odd 'quirks' that stymie us.  TT's tend to be mechanical in nature, 'generally'.  I have a CD that has an amusing 'stutter' on a track that makes it 'back up' randomly within one particular track.  This track has a similar musical cadence and structure to the oh too familiar 'Cocaine' by Clapton.  If left to itself, the song seems to go on Forever....

It does this on Any Player, BTW.  No visible defect.

It's fun to put it on at a party that's been ongoing for awhile, and see if anyone notices that the same song has been playing 'the extended version'... ;)
cleeds
759 posts                                                                        08-25-2017 5:08pm

 moonglum
... something could be mechanically "bottoming out" if it is periodic e.g cartridge rear end hitting a warp or negative VTA ...
Certainly a pickup arm can be adjusted so that it and the VTA are too low, but there’s no such thing as a "negative VTA." That’s physically impossible.
cleeds,

Just a guess this is what moonglum is referring to when he said "negative VTA".
https://forum.audiogon.com/discussions/vta-high-low-where-you-go

Jim

Dear Cleeds,

Positive, Neutral, Negative VTA are popular expressions which have been around for a while.

Put simply, it’s easier to type "Negative VTA" rather than "I arranged the tonearm so that the pivot was lower than the stylus" or a similar verbal "fudge".

You can call it "physically impossible" if you wish. Whatever floats your boat and makes you feel good.

;^)

Regards,

Dear Jim(Jea48),

We posted simultaneously so I didn't see your comment until the window refreshed.

Many thanks for posting that link. :)


It seems I’m not the only one with a "BS" problem ;^)

What a relief to know I’m in good company! :D


Bill