New Range of Electronic Speed Controllers
A complete new range of electronic speed controllers (ESC), for model aircraft use, has been released to the British and European markets. TheTelebee ESC's, for brushed motors, are manufactured in China under western quality controlled standards. These electronic speed controllers are already selling well in the USA and Australia.

The Telebee ESC's are made using the latest microchip and MOSFET (metal-oxide semiconductor field-effect transistor) technologies.

Complete Range
There are nine controllers in the range, covering all the popular sizes, starting with the 5 amp version and going right up to a 50 amp controller. Switching rate for the entire range is at 3500hz. There is also a choice of a soft brake or not. The Telebee range are all capable of running on 5 to 10 cells (6 to 12 volts).

What's Included?
Also included with the Telebee electronic speed controller is an arming switch, servo lead and plug, and a set of three capacitors to solder to you electric motor. These capacitors filter out possible sparks from the motor that could damage the ESC.

Heat build up within the speed controller is dissipated with the use of an aluminium heat sink. A full set of instructions are offered on the reverse of the card mounted bubble pack.

How Do Electronic Speed Controllers Work?
ESC's are widely used to regulate the speed of motors in electric models. But what do they do and how do they work?

The speed controller usually plugs into the throttle channel of a 3 or more channel radio. It also has connections to the motor and to the battery that powers the motor. Nearly all speed controls offer a BEC (battery eliminator circuit) function. This clever bit of circuitry removes the need to use your standard 4 cell receiver battery. The power to the receiver is provided via the 3 wire lead that you have plugged into the throttle channel.

Most speed controllers vary the speed of the motor by turning the power on and off at a varying frequency of ON and OFF times. The more the controller is ON for example, the more power reaches the motor. There are lots of different controllers on the market for different types of motors, current draw and for the number of cells that you are using.

Choosing the The Right Type Of ESC For You
It's important to remember that controllers for Brushed motors will not work on Brushless motors and 98% of Brushless controllers will not work on Brushed motors. To choose the right type of controller for your application you need to know how much current the motor will draw under maximum load and how many cells you will be using. Better speed controllers like Schulze, MGM Compro and Kontronik utilise more FET'S (Field Effect Transistors) to minimise resistance and operate at higher frequencies than the cheaper units. This means that more Volts reach the motor in a smoother more proportional manner, making your model throttle and easier to fly.

In general, its better to purchase an electronic speed controller with a slightly higher rating than what you require. Then in future, you can use it on bigger models. Make sure that you use brushless and brushed controllers with their corresponding motor types.

Ordering
Telebee Electronic Speed Controllers can be bought from your local model shop or direct from Memory Corporation Europe Ltd, who are based in the United Kingdom. They have a Local Rate call number and sales staff available to take your order. See details below.