servo hot-wire

[Medders]

Back in the good ol days, I seem to remember that I made my "average" servo perform much better by wiring the red lead straight into the battery plug.

I also have a hazy memory of having to solder something into the connection to make it work properly.

Does this make sense to anyone? Is this still done or am I talking shite?

[PaulRotheram]

you need a choke diode, this will prevent electric impulses damaging the servo.

doing this mod will shorten the life of you servo however, the motor works harder as more voltage is put through it.

[Medders]

Originally Posted by PaulRotheram

you need a choke diode, this will prevent electric impulses damaging the servo.

doing this mod will shorten the life of you servo however, the motor works harder as more voltage is put through it.

cheers mate

not worried about the "life" issue. Any idea what spec diode i need, i assume i need to get my arse down to maplin electronics or does your average model shop still stock this type of thing?

[PaulRotheram]

your model shop should have these in, they are still used today on all 7.2 servos.

[philly]

The 'choke' you need is actually a 4.7uH resistor. Model shops have them for a couple of quid or Maplins can give you about 10 for the same 2 quid!

[Northy]

Guys, it's not a diode or a resistor, it's an inductor!

Cheers,

G BEng (Hons) Electronic Engineering

[jimarea51]

Northy,

I'm sure you'll explain in more detail......

Jimarea51
Amb, K.N.O.B. Bacon & Egg...

[DCM]

Originally Posted by Northy

Guys, it's not a diode or a resistor, it's an inductor!

Cheers,

G BEng (Hons) Electronic Engineering

glad you said it, was just reading the thread going gaaaaaargh, it isn't a diode, then, GAAAAAAARGH it isn't a resistor.

The smaller ones look like a resistor but they are most definately not.

4.7uH (thats micro henries)

[Medders]

I also have a hazy memory of having to solder something into the connection to make it work properly.
[/quote]


All Gobbledegook to me. I'll stick with my original description

[Richard Lowe]

An inductor a a coil basically which blocks AC above a certain frequency depending on the value of the inductor.

[Northy]

And does other stuff too Rich

G

[Richard Lowe]

Well yeah but we're on 'it's a resistor' level