This ferrite ring will help keep unwanted electrical noise out of your servo. It is also a great way to shorten servo wires in a neat manner. The ring is 2.5 grams and can handle as many as 5 turns of 28ga servo wire. That is about 4 inches! Smaller wire can generate more turns. To wrap the wire, simply remove the 3 pin servo connector by lifting up on the plastic pins with a hobby knife. Gently pull out the wire. Thread the metal connectors through the ring as many times as you wish. For more glitch supression, please consider the Dionysus Design glitch reducer (DD-GLRD-PKG-01) which uses DSP filtering to always generate a clean signal.

The E-flite 40A Pro Switch-Mode BEC Brushless ESC is a high-quality, innovative and efficient sensorless brushless electronic speed control with an integrated switch-mode BEC. It can operate without the need for a separate receiver battery to power your servos and receivers, saving you weight and complication. It is capable of up to 40 amps continuous current when using 3- to 6-series Li-Po battery packs. You can drive up to 7 analog or 6 digital standard-sized servos with the BEC on any recommended input voltage. This ESC also features an exposed, finned heat sink aluminum case with lightweight plastic endcaps. Additional features include safe power arming along with advanced programmable features such as low voltage cutoff, braking, timing, throttle input range, and more, making this truly a 'pro series' speed control.

The GWS brushless speed controllers are considered inexpensive and yet reliable. The ESC stays cool under the heaviest of loads and it is available in both 25A and 35A. Also available ( sold separately ) is a full programming unit which allows for full control of many features including soft start, break and much more. No personal computer is needed to setup these ESCs as you can configure it in the flying field with the programming dip switch unit.