DC motors and outboard power supplies...

I use the Origin Live dc motor and controller on a Oracle turntable. I find that the temp. of the room has an effect on the speed. If i let the room cool off or heat up the speed will change slightly, but it is audible. Letting the motor run for 15-30 min. prior to listening helps warm up the motor and oil in the turntable bearings. If i maintain the temp. in the room and i check the speed before every listening session i usually never have to adjust the speed. The Origin Live motor and controller is very accurate and the strobe will vary the slightest amount at the very begining and very end of the lp. The instructions for the Origin Live say to adjust the speed when the stylus is in the center of the lp , this gives almost perfect speed throughout the lp.

The largest improvement came from removing the Oracle motor and making a motor pod for the Origin Live motor and allowing the motor to sit on the turntable stand instead of the plinth or base. This removed all the vibrations that the motor generated and now my turntable is extemely quiet. To see if your motor is generating vibrations and transmitting it to the turnable put your ear against the plinth with the motor running and if you hear noise this may be heard during playback.
Todd

No Regrets; I find that since my rig is in the basement there is a wide variation of ambient temperature. Being so affects the bearing oil temp until it has reached a stable temp. I live in the Colorado Mountains. I do find a more measurable need for checking speed accuracy during the winter months then I do the summer months (which are few)!
Peace

Thank you to all who shared their experiences with me regarding this. I greatly appreciate it.

Dear No regrets: Looking at your thread and that in other one ( not yours ) you ask the same: Could I assume that you have speed " problems " with your TT?, do you? or which is the real subject: only curiosity?

Regards and enjoy the music.
Raul.

Hello Raul,

Yes, I am having issues with speed control in my rig. So, as I am trying to sort out these issues I am contemplating getting a new table but can't help but wonder if I might not have simalar problems with the new table. Therefore I ask questions of the fabulous members of this forum because I respect their opinions.

The problem that I am experiencing is that there are times that I can listen for hours without a problem, and then out of the blue my speed will slow way down. Other times I can't even make it through a single record.

I've changed the bearing oil, the belt, the battery in the power supply. I don't know if it is an issue with the motor or the supply. About a couple weeks ago, I cleaned the din plug that connects the power supply to the table and I had put on about 50 hours of listening without a problem. But now, here it is again. I'm getting stumped. Maybe I need to replace the capacitors and regulator chips in the supply. I don't know what the answer is but it is getting frustrating. I never know when it is going to happen except that it will probably happen for sure when I'd like to invite friends over for listening!

So do you have any ideas? Your thoughts would be greatly welcomed.