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Old 06-12-2004, 07:34 PM   #1
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Default 6v Servos?

I'm looking for a new servo for my Tamiya TRF 415.

I'm considering going for a KO PDS-2344 (torque) or PDS-2343 (speed). I assume that a high torque shouldn't be needed for a 1/10th tourer and is only for a 1/8th and above. Is the high speed only designed for 1/12th or will it be ok for me???

What's the difference between a 6v servo and and 7.2v one. I will be using a six cell pack with the car.


So many options !!!!!!!!!! Argggggggghhhhhhhhhhhhh!!!!!!!!

Thankyou
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Old 06-12-2004, 07:58 PM   #2
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I'm pretty sure you can run a 7.2v servo on 6v, it just won't be as fast as it could be. Somebody please correct me if I'm wrong...
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Old 06-12-2004, 08:09 PM   #3
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Well, here's what I think

On a 7.2v servo, there's an extra wire extending from the servo that needs to be hooked up to the esc to get the full value. A 6 cell battery pack is irrelevant in this case..it will work fine.
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Old 06-12-2004, 08:12 PM   #4
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Default 6v Servos?

Ballsie;

Most servos are rated @4.8 & 6.0 volts and run off the internal voltage regulator from the Receiver.

The 7.2v servos are called FET servos and run off a seperate power wire from your ESC.
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Old 06-13-2004, 06:14 AM   #5
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Thanks - I have a basic ESC which doesn't have any extra wires - I'll probably go for the 2343 6v

Thanks!
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Old 06-13-2004, 06:29 AM   #6
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A ko 2343 is a fet servo, its a 6v fet servo!

In the past most fet servo's were 7.2v so you had to use a power wire from the servo to the speedo/ positive battery wire. But as technology has advanced the 6v servo's are just as quick as the old 7.2's.

2343 are digital so i you have the required leads and software you can program the end points, steering curves etc. But they are fine as they come.
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Old 06-13-2004, 06:36 AM   #7
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Great info Rob - thanks very much!

Adjustable steering sounds excellent and probably makes the thing worth the slightly pricey cost
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Old 06-15-2004, 04:11 AM   #8
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Quote:
Originally posted by Ballsie
Great info Rob - thanks very much!

Adjustable steering sounds excellent and probably makes the thing worth the slightly pricey cost
You dont need a programmable servo in a touring car. If you need any adjustment at all, it's way easier to adjust on the TX. This, of course, requires a programmable TX. If you dont got one already, the programmable servo might be interesting, but I'm quite sure you be much more happy, if you get an ordinary high speed servo, and then save up some extra for a better TX.

Check the price of PS-2113 FET + KO Presto and features (for example), then compare to the programmable + wizard etc. Or if you want a digital servo, try look at the PDS-2143 FET.

Or check out the Airtronics MX-3 TX - extremely easy to use, and the newest version is crystal free - price is reasonably.

About 7,2 volt; Any KO 7,2 volt servo can be connected directly to the 6 cell main battery, so your ESC dont need the FET-wire. The servos come with a little manual, that shows how to do. If you can solder, it's quite easy.
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Old 06-15-2004, 04:40 AM   #9
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Thanks Cole, It's the 2143 I'm interested in, I just mistyped the part number - I'll take a look at the other servo.

Many THanks

Alan
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