ORIGINAL: doxilia
So would you say that these devices are essentially a potentiometer - variable rate resistor - that allows one to reduce the voltage to the servo? I would think that what would be desireable is a capacitive device that discharges at a specified rate - i.e., reduced rate current @ constant voltage.
My gear is very light so torque is not so much an issue but it is important the servo receive full voltage so that the end points allow the servo to lock the gear up/down.
David.
No, not at all. What they do is modify the incoming pulse. The pot is there to change the rate of change that is allowed for the pulse.
The incoming pulse will be near one of the two extremes (1-2ms), and when you flip the switch it goes to the other extreme. The circuitry in the middle (easily accomplished with a micro) reads the incoming signal, reads the pot position, and then adds or subtracts an amount based on the pot value to the incoming pulse, and then sends that to the retract servo.
You still have full torque.
My MC35's are in. I hope to get some comparisons between the HS-55 and them tonight, hopefully as a video.
Andy