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DC motors and outboard power supplies...

For those of you with analog rigs that utilize a DC motor and outboard power supply....I'm wondering:

1. How often do you check to see if the platter is at correct speed?

2. How often do you have to fine tune the speed adjustment?

3. Once fine tuned, does it stay throughout the listening session, or do you need to make adjustments throughout?

4. Would you be willing to comment on which table you are using?

Thank you for your comments.
no_regrets
santanaali
78 posts
 
Here is what I do: I turn on all the equipment for at least 30 minutes; including my Galibier SE. I check and adjust IF necessary before the 1st LP. Then I recheck and fine tune if needed on the second LP. The bearing oil needs to warm up. I have never found that I have to readjust but I do occasionally re-check during a long listening session.
no_regrets OP
488 posts
 
Hi Santanaali,

Thank you for responding. Just so that I understand, if you go a few days between listening sessions, are there times when you first check the speed, that it is different from what it was at the last listening session?

Thank you again for sharing your experiences with me.
Ag insider logo xs@2x
isanchez
276 posts
 
1. About once a week or after a long time off.

2. Very rarely.

3. It plays at speed during the listening session and for many, many days, but I check it from time to time anyways.

4. I'm using the Acoustic Signature Mambo. Its bearing is self-lubricated, so it does not use oil. The bearing is made of a material called Tidorfolon, which, as I understand it, is composed of offerrite, vanadium, teflon and titanium. The outboard Alpha power supply generates its own frequency and therefore is not affected by power fluctuations.

Best,

iSanchez
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