Technical, Techniques, Hints, and Tips > Radio Equipment

SERVOS

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Red_Hamish:
Hello all, a quick thank you to CAD2 for the link above. Even this idiot could understand it.

cheers

Jim

CAD2:
Jim
You are most welcome.
CAD2

Roger in France:
TO CAD2: Sorry, I clearly annoyed you by using the word "implied". I simply meant that you had not been implicit and that I had had to assume that is what you meant. I would not, willingly, upset anyone on this forum as I find it such a valuable resource.

When I dislike or object to anything I keep quiet on the assumption that the other person's oppinion is probably as valuable as mine!

You were being helpful, I was trying to be certain, you continue to be helpful. Thank you.

Roger in France.

Roger in France:
Having read all the material all of you have suggested and several major manufacturers catalogues I can still find nothing which clearly says "BEWARE: Digital servos may not work with your radio".

So I am working on the belief that my F14 radio (and the others I have) are analogue and will not drive digital servos.

The servo that CAD2 recommends seems ideal for my purposes and good value, I will go with that.

Roger in France.

malcolmfrary:
There may well be the start of an on-going problem here with manufactureres using the word "digital" in as sloppy a manner as possible to imply superiority where none exists because it is a new buzzword. 
A fully digital system should be one where all of the signalling is in the form of coded numbers, and is handled at every stage between the control stick and the servo arm by devices which handle such numbers.  Sadly, anything which uses chips from the "digital" part of the chip makers inventory tends to get called "digital".  I suspect that digital in this case means that although the servo probably responds to a normal (i.e. on for a set length of time, off the rest of the time) signal, which is sort of binary, this control signal is then handled by a processor to control the motor.
I would be tempted to e-mail the manufacturer and ask.  If you dont get an answer look elsewhere.  Let the manufacturer know you have gone elsewhere, and why (it pays to be helpful). 
I will stick with my standard servos which I have modified into winches.  They work on the principle that when the stick is centred, nothing happens, when moved forward or back, the winch winds in the appropriate direction as long as I am shoving the stick.  With a 12 or 15 mm double drum, there is plenty or torque for handling the sails on my 1M size yacht, and the speed is OK for my kind of non-competitive sailing.

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