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In Reply to: RE: slow turntable? posted by waltjohns on December 07, 2016 at 19:50:41
If pitch sounds stable and 33.3 is measuring correctly then it cannot be slow.
So my first question is : You say "timed" the speed. What method did you use? "Timed" is a slightly unusual phrase and most people would say "measured" instead and will have used a strobe disc or a test disc and frequency counter/counter app such as the Dr. Feickert one.
If the speed is indeed 33.3 rpm as "timed" by you then perhaps you could explain a little further how this sluggishness is manifesting itself ?
Is it an Esprit SB or DC?
Follow Ups:
As someone who repairs turntables, people take it for granted that I check things with a strobe disc. I do not, as I trust my ears. So you need to do the same, or at least print a strobe disc from the internet, and light it with something that cycles at wall-current frequency [not an electronically-balasted compact fluorescent].
While there are better ways to verify platter speed than using a strobe disc, one of which was cited by John, I have been laboring under the belief that IF you do use a strobe disc, it is risky to illuminate the disc with a wall-powered strobe (contrary to what you say), because there are slight variations in AC current frequency over time. This is why KAB, who make the best strobe device I know about, supply a battery powered strobe, guaranteed to flash at a constant frequency.
Maybe you are gifted with perfect pitch, but by and large I would not think that anyone's "ears" can detect small variations in platter speed, which become important if one is servicing a turntable and desires a precise adjustment. Ballpark, maybe. Exact, no.
" As someone who repairs turntables, people take it for granted that I check things with a strobe disc. I do not, as I trust my ears. So you need to do the same, or at least print a strobe disc from the internet, and light it with something that cycles at wall-current frequency [not an electronically-balasted compact fluorescent]."
I assume that you have posted out of sequence as your response appears as a comment to my posting rather than the OP's, to whom I guess it applies?
Yes. I always seem to post 'out of sequence' on this board.
Thanks, everyone!
It's an ear thing and pretty subtle. Just a general lack of "kick" but it's not consistent. Maybe a weird stage in the life of my cartridge? The things I'm hearing it on tend toward woozy and spacey (U.S. Girls, Can). I've also checked them against Spotify and the pitch isn't notably different.
I'll try on those apps to be on the safe side but it seems like this either totally imagined (ears are subjective!) or so subtle that I should just get used to it.
Best,
WJ
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