ElectroDynamics Inc
Electronics and MORE for the Discerning Modeler!
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    EDR-103 Glow Drivers
      Single Cylinders & Twins
    EDR-105 Battery Monitor
    EDR-106 Pro Servo Reverser
EDR-107ADP Kill Switch
    EDR-108 Pow'R Back'R
    EDR-111 Pow'r Bus Pro
    EDR-117 LiteSys
    EDR-122+ Servo-Slo Plus
    EDR-124 BatMon Lite
    EDR-125 Gear Mg'R
    EDR-126 Gear Saver
    EDR-201 Current Probe
    EDR-203 ServoCiser
    EDR-206 Turbine Driver
    EDR-207L NanoTest
      Buffer-Amplifier Interface

    EDR-102 One-Clik
    EDR-103P Glowlite II
    EDR-107ADP Kill Switch
    SANYO eneloop Packs
    EDR-207L NanoTest
      A123 Tester

Ultra Switch II

    ED-Nano A123 Packs
    SANYO eneloop Packs
    Receiver Packs
    Transmitter Packs


    Switch Harnesses
    Amplifying Buffers
    Charge Cords

Festo Fittings


Heat Shrink Tubing

Ultra Precision Valves

Web Specials

Tech Talk

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Don't let a "little" Gear
RUIN your whole day!

We've all done it... switch on the radio, and... C-R-U-N-C-H, the Gear collapses... 
Aaargh!  Forgot to make sure the Gear switch was "Down" before switching on.

An "ounce" (half-an-ounce, actually) of Prevention
is worth more than several "pounds"
(or $$$) of cure!

EDR-126 Gear Saver...

Prevents accidental Gear retraction when powering up your radio.

Gear Saver

When switching on the Rx, the EDR-126 Gear Saver automatically forces the Landing Gear to the Down-and-Locked position and stays that way until the pilot has deliberately commanded "Gear-Down" once for at least 5 seconds, before allowing the Gear to be retracted.  After that, the Gear operates normally.

Never again suffer an accidental gear retraction when powering up your radio!

  • "No muss- no fuss" installation
    • Just plug in-line with retract servo.
    • Installs in less than 2 minutes, even in an existing airplane!
  • Super E-Z one-button set-up!
    • No fiddly programming
    • No confusing menus
  • ROCK-STEADY, no-jitter operation
  • Convenient!
    • Arrive at the field, pull your airplane out from the car, flip the Rx switch on for a couple seconds and sha-zamm the gear automatically comes down, no fussing or wrestling with your Tx, no groping for the retract valve!
  • Comes with universal connectors.
  • Works with all brands and types of radios - AM / FM / PCM - even Spread Spectrum!!

EDR-125 Gear Saver
ONLY $44.95


2017 ElectroDynamics, Inc
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Orders: 1-800-337-1638; Info: (734) 422-5420; Fax: (734) 422-5338
31091 Schoolcraft Road; GAZ Commercial Center; Livonia, MI 48150