I have a 3pk black and am using a novak xxta. My question is can I use a digital servo with the reciever and if I can will I gain anything grom using the digital servo? I am currently running a Hitec 925 mg in my oval car and want something faster.

Thanks

They really don't gain you speed, what digital servos get you is increased holding power, many come with a slight increase in torque over the analog model, and there is an increase in resolution.

The answer to can I use one is yes.

You can actually turn your wheel fast enough to need a faster servo? The 925 is pretty fast.

If I understand it correctly, the only thing differnt between a digital and analog servo is in the posistioning feedback loop... and that rather then having a analog potentiometer that controls the posistion, there is some form of digital posistioning system??? is this accurate? (based on Pat's previous response I assume my understanding is correct)

My problem is with the centering. Running oval and radio is set to like 30% steering anyway. I am having problems with it wandering on the straights. so do you think I should change??

I have always had that problem with the 925 (and Hitec servos in general), switched to a JR4735 and it fixed that. I don't trust hitec servos period even though I didn't pay for it Ill pass on it.

Dyno you are correct, however the newer line of digital servos have beefed up motors and gears in them so they are better than any analog out there just because there wasn't an analog equilivant made.

The main difference is what Pat said, the holding power. In an analog servo, once the servo reaches position, power is basically removed from the motor. As the position moves from what is is suppose to be, power is again supplied to move it back to where it should be.

In a digital servo power is always supplied to the motor even when it is in position so the "holding" power is much higher.

Also, the signal to the motor in a digital servo is about 10X faster (30Hz vs 300Hz) so it can respond faster.

Here is a little info http://www.futaba-rc.com/servos/digitalservos.pdf

That is what I need to know. Thanks guys