Differance in jr servos ?

[j2tgw]

Hi what is the differance between a jr mp82gwv servo and a jr mp83gwv servo ?
both are the same price and both have the same spec !!
anybody got any thoughts on this ??

Cheers Tom !!

[GIXERMAN]

gods nos, but love to no the frame rate for defiant.

[tonystevens]

dont know but if theyre anything like the mp80g then id steer well clear. Probably the worst servo i ever had the pleasure of owning, never sure what the actual frame rate is as Brian says and you have to step the voltage down that far to stop it from buzzing/jittering you may as well use watch batteries to power it

[jwatts007]

I use one on my Trex 600 it works ok HV...I thought I had done the gears in a crash I tried everywhere looking for a set of gears even emailed McGregors for a part number (got no reply) turned out the servo was ok...for this reason I would leave these servos alone...

[zci_zr]

Hi Tom,

Do you mean JR MPH 83gwv?

To my knowledge, the JR mph83gw’s output arm position is controlled by a (linear) Hall effect sensor via magnetic force. Unlike the traditional potentiometer, there is no physical contact for position sensing on the Hall effect sensor.

According to JR, the (linear) Hall effect sensor should provide you with better durability, higher accuracy and lower power consumption compared to the traditional potentiometer operated servo, like the mp82gwv.

However, when operating the (linear) Hall effect servo, Jr strongly suggests that you should not set the servo close to a strong magnetic field. So some electric helicopter applications, in which the servo sits right next to the motor can be a problem. I have contacted Jr before regarding this issue but they cannot provide me with a safe measurement.

Anyway, the mph83gwv is a good servo; I have set it up on my heli’s tail control, but I would not take the risk to use it on swash plate where the servo is very close to the motor.


Hope you will find this information helpful.
Here is a link, if you wish to read bit more about it: https://www.jrpropo.co.jp/english/pr...rvo/mph83.html

Rui

[j2tgw]

Ok so I am looking for a jr tail servo to match my cyclic servos
what would you guys recommend ??

[jwatts007]

Hi Tom,

Do you mean JR MPH 83gwv?

To my knowledge, the JR mph83gw’s output arm position is controlled by a (linear) Hall effect sensor via magnetic force. Unlike the traditional potentiometer, there is no physical contact for position sensing on the Hall effect sensor.

According to JR, the (linear) Hall effect sensor should provide you with better durability, higher accuracy and lower power consumption compared to the traditional potentiometer operated servo, like the mp82gwv.

However, when operating the (linear) Hall effect servo, Jr strongly suggests that you should not set the servo close to a strong magnetic field. So some electric helicopter applications, in which the servo sits right next to the motor can be a problem. I have contacted Jr before regarding this issue but they cannot provide me with a safe measurement.

Anyway, the mph83gwv is a good servo; I have set it up on my heli’s tail control, but I would not take the risk to use it on swash plate where the servo is very close to the motor.


Hope you will find this information helpful.
Here is a link, if you wish to read bit more about it: https://www.jrpropo.co.jp/english/pr...rvo/mph83.html

Rui

I thought it had a hall sensor which is why it makes no noise even when binding...

[zci_zr]

Ok so I am looking for a jr tail servo to match my cyclic servos
what would you guys recommend ??

i have three mp82swv on the cyclic and mph83gwv on the tail, works great.

[zci_zr]

I thought it had a hall sensor which is why it makes no noise even when binding...

I think the binding noise is coming from the motor inside the servo when it's trying to fight back. The mp82swv is equaly quite as the mph83gwv.

[GIXERMAN]

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