Mike's Lost In Space B9 Robot     |   home

Tread Section   |    Tread Belts   |    Wheels   |    Legs   |    Leg Motion   |    Donut MK I   |    Donut MK II   |    Torso   |    CSS   |    Radio TX/RX   |    Power Pack   |    Back Plate   |    Neon   |    Chest Buttons   |    Belly and Chest Lights   |    Lightening Wrist & Claws   |    New Wrist Inserts   |    40,000 volts   |    Arms   |    Radar Ears   |    Bubble Lifter   |    Brain   |    Brain Lights   |    Bubble   |    Transporting   |    24" Robot   |    Misc.   |    Events



...... Radio Transmitter/Receiver ......


This is not an essential modification but i found it useful to extend the battery life of the transmitter.

WARNING! - this will void your warranty, but if you are proficient at soldering it is a fairly easy and safe mod to make.
Using the Spektrum DX7, which has a rechargeable battery of 9.6v, but a transmitter stage (where much of the power is consumed) of only 3.3 volts. It has a cheap linear regulator that burns off most of the energy as heat, whereas the more expensive switching regulator is about 85% efficient.

The replacement 3-pin regulator is a DE-SW033 from Dimension Engineering, the same people who make the popular Sabertooth motor controller. Examples of this modification can be found on their website.


Before - Circled are the new switching regulator and the linear regulator it will replace.


After - Switching regulator soldered in place.



Go to Power Pack


home