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[justboatonic]

Now that Dirty Harry, the MSW Envoy build is virtually complete, Im contemplating the next build which will likely be twin screw and a decent size ie 1\72nd scale warship, 1\48th scale Minehunter or 1\12th scale Tamar

I want to use lipos as Im using them for leccie flight and want any new purchases to become interchangable if possible.

Like most people I guess, I can obtain lipos, brushless motors and esc's. But, if Im going down the twin screw route would like to maintain mixing ability to slow the inside prop in a turn. I dont want to go down the 'tank steering' route as I prefer the steer wheel transmitters for sailing.

So, with a likely lipo power source of 6S packs ie 22.2v for something like the Tamar and 4S packs ie 14.8v for warship \ minehunter, does anyone know of available mixers that can handle these voltages? All the ones I've seen only seem to handle 12v.

suggestions greatfully recieved 

[treeboa]

i always thought mixers and such worked off the same voltage as the receivers - certainly not 12v or anywhere close to that

[justboatonic]

i always thought mixers and such worked off the same voltage as the receivers - certainly not 12v or anywhere close to that

ESC's and mixers need to handle the voltage of the motor batteries though dont they!?

[treeboa]

the esc handles the battery to motor voltage, the red lead on the esc supplies the correct lower volts to the rx on a bec system, the rx sends the power to the units that it  controls, esc, servos, switches etc, typically 4.8 - 6 volts

[MikeA]

esc mixer circuit:
http://www.westbourne-model.co.uk/images/help/wiring-Twin-motor-twin-Esc-mixer.html

esc mixer p40C (top 1)
http://www.action-electronics.co.uk/mixers.php

[malcolmfrary]

ESC's and mixers need to handle the voltage of the motor batteries though dont they!?

Mixers work on the output from the receiver, taking information from two channels and mixing them.  They then take the mix and re-transmit it to the ESCs, which think they are still plugged into the RX.  The mixer runs off the same supply as the receiver, being part of the logic/control train.  Until such time as ESC manufacturers start making brushless ESCs that offer reverse in the same way that brushed ones do, mixing is probably best avoided.

the esc handles the battery to motor voltage, the red lead on the esc supplies the correct lower volts to the rx on a bec system, the rx sends the power to the units that it  controls, esc, servos, switches etc, typically 4.8 - 6 volts

4-8 to 6 volts, yes-ish.  The instructions do need careful reading regarding the type of battery supplying the voltage.

[andyn]

Pm sent