Page 10 - MFW March 2024
P. 10

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     Barrie Russell


    As a youth like many I built and flew Free flight and Control   So what to do about it  one might  ask.
    line and had no experience in RC, but   still remember
    awing over the huge ED ground based transmitter box of    Well, fortunately, with the right friends there is a way, and
    batteries and valves with a tall aerial etc sitting in Steven’s   after spending a few nights in Christchurch with Barry
    Bike Shop window here in Napier in the early 1950’s, and   and  Di  Lennox  a  few  of  months  back  the  solution
    then seeing the late Jack Godfrey flying his “Huge” RC   became obvious.   After delving into Barry’s workshop
    Rudder Bug somewhere at a field in Hastings!               complex and talking and talking and listening and talking
                                                              more, it became obvious that here was the answer, and
    I came back to the hobby in the mid-1980’s when a school   with  some  surreptitious  manipulation  Barry  came  up
    mate John Clarke, invited me out to Highway 50 to a club   trumps.   I am presently in possession (on loan I must
    meeting and I was hooked.  By then proportional RC was    stress) of a Futaba FT-3A   single channel Transmitter
    in and has just got better, culminating in today’s digital   from the early 1960’s now converted to 2.4ghz.  At the
    2.4ghz systems. We still have a few Rip Van Winkles in    same time, Barry was doing a similar conversion on an
    the  club  who  can  relate  back  to  those  early  days  but   OS Pixie Tx from the 1960’s so maybe we can go pylon
    they’re mostly just memories now and it seems a shame     racing together .. Yeah Right !
    not  to  experience  those  early  thrills  and  spills  before
    shaking off this earthly coil.                             Here for your edification and interest is Barry Lennox’s
                                                              account of those transmitter conversions.
    NEW LAMPS                           SPECIAL EDITION

                                               FOR
                                         FUTABA FT-3A
    FROM OLD                              & OS PIXIES

                                           Barry Lennox

    This was an exercise in converting some very old S/C      modern version The Pixie pushbutton does not have a
    transmitters  from  the  1960’s  into  a  2.4GHz  spread   very good feel in any case, but the Futaba has a nice micro
    spectrum  version  with  an  electronic  encoder.  Why?   switch.
    Because  you  can,  and  it’s  great  to  see  60  year  old
    technology getting a new lease of life.  Anyway, there were   Then the following parts are installed....
    two,  the very small  OS Pixie and the somewhat larger    An RF transmitter module. I used the Lemon, as they are
    Futaba FT-3A. The Pixie is so small that it can probably   more readily available and cheaper than FrSky, plus the
    only fit a 2S LiPo at 200 mAH. The Futaba can hold an 800   service and post costs from Lemon are very good.  And it
    mAH one.                                                  comes with a comprehensive manual in fluent English!  A
                                                              big plus these days.  See https://lemon-rx.com/


















    So what’s the process?  Firstly you clean it up if required,
    removing  any  corrosion  and  dirt,  remove  everything
    except the on-off switch and the push-button. Sadly, in the
    case of the OS Pixie the push-button is almost impossible
    to remove off the PCB so it has to be replaced with a

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