Futaba S9551 or Savox 1251mg??
#17
I've used both. Currently prefer the Savox for a variety of reasons, but be aware that the Savox servos draw a little more current than just about anything else out there. If your system, especially a Spektrum 2.4, is running at or near brown out levels, you MUST run a glitch buster cap or the drain of the Savox will surely push you into full electronic brown/black out. Only takes a few microseconds of the available power to the reciever dipping to throw most 2.4 systems into a brown out condition (like full lock steering under high cornering load and punching the throttle coming out of an infield turn), and the Spektrums seem to be the most susceptible to it. Usually manifests itself under full throttle and a slight touch of the steering, and the reciever won't have enough current to keep it's electronic brain linked to the transmitter.
We tend to ask a LOT of our electronics today: must be mini or micro, light weight, and run a fan, transponder, high speed/torque servo (sometimes 2 or more, depending on if you're electric, nitro, or rock crawling or monster trucking), power a computer brain ESC, and a whole host of other electronic gadgets that we cram into these awesome toys. Fact is, there's no free lunch on that score. Circuit board solder runs can only handle so much current before they poof, and the chips are engineerred to protect themselves through some sort of shut down failsafe to prevent that from happening in most cases.
Usually not a problem, as most of us run the glitch buster anyway, just be aware that all that power(torque) and speed from the Savox isn't ALL just internal gearing advantage and comes with a price, electronically, and that price is a high electrical current demand.
We tend to ask a LOT of our electronics today: must be mini or micro, light weight, and run a fan, transponder, high speed/torque servo (sometimes 2 or more, depending on if you're electric, nitro, or rock crawling or monster trucking), power a computer brain ESC, and a whole host of other electronic gadgets that we cram into these awesome toys. Fact is, there's no free lunch on that score. Circuit board solder runs can only handle so much current before they poof, and the chips are engineerred to protect themselves through some sort of shut down failsafe to prevent that from happening in most cases.
Usually not a problem, as most of us run the glitch buster anyway, just be aware that all that power(torque) and speed from the Savox isn't ALL just internal gearing advantage and comes with a price, electronically, and that price is a high electrical current demand.
#18
Futaba S9551 !
#19
#20
I run a Speed Passion Cirtix in my photon, that is 6V 2 amp BEC and works great with my Spektrum SR300 Receiver without a Boost cap. I also run the 1251 mg servo, AMB, and Fan for the Motor. No Gltiches
Last edited by TAMAK; 01-07-2011 at 09:53 AM.