ORIGINAL: abel_pranger
There is no "driver circuitry in the receiver" in any of the Futaba, FMA, JR, Hitec, Berg or GWS receivers I use. They all provide logic level signals to the servos, which contain the driver circuitry. The Rx could care less if it is sending signals to a park flyer's pico servos or a 40%er's 'truck winch' servos.
True, as far as the servo signals are concerned.
Using a micro receiver to supply power to large servos is probably not a good idea, because it could overload the micro receiver power traces if the total servo load it excessive.
None of my giant model servos get their power from the Rx - I use a separate power bus to feed the servos.
I think that might have been what SoCalGliderGuider had in mind, but I've been wrong before.