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A Few Items for Sale

OS Digitron DP-3, 3-Channel Radio Control System

OS Digital 3-Channel Radio Control System - Airplanes and Rockets

OS Digital 3-Channel by World Engines advertisement in American Aircraft Modeler from a 1968 edition.

Here is the OS Digitron DP-3 Radio Control System User's Manual.

OS Digital 3-Channel Radio Control SystemThe OS Digitron DP-3, 3-Channel Radio Control System was my first radio control system. To the right is a photo of my system, that was first installed in a homemade air boat (Cox .049 used for power). The transmitter and the receiver both had a dark blue, metal case.

At one point I installed the OS Digital 3-Channel radio in my Andrews S-Ray model airplane. It had a steerable nose gear and throttled engine, which allowed me to run it up and down the road in front of my house for fun - yes, at 13-14 years old that counts as fun. My neighbors begged to differ, however, since the transmitter, at 27.195 MHz spewed some pretty significant harmonics (television interference, TVI) at the VHF television channels. The 2nd, 3rd, 6th, and 7th harmonics fell squarely into the band. When I switched the transmitter on during the summer afternoons when soap operas and game shows were being viewed, housewives within three or four houses of mine would stick their heads out the door and yell at me to turn it off. VHF channel 5 seemed to be the most vulnerable to my interference. They weren't too thrilled with the engine noise, either.

The pictures below is my OS Digital 3-Channel that I bought off of an eBay auction. It looks exactly like the system I had. It did not come with the sewn leather case that went on the transmitter, so I am still looking for one if you know where it can be gotten. The case came in handy once when I left the transmitter sitting on top of my car after loading the airplane and field equipment into the car, then puling out of the driveway and seeing the transmitter bounce off the road. Yikes. The only damage was a hole in the side of the leather case where one corner of the metal case punched through.

I would like to one day install the electronics from my Futaba Skysport T4YF transmitter (72.750 MHz FM) into it for use with my Spirit glider.

OS Digitron DP-3 Front w/Back Cover - Airplanes and Rockets

OS Digitron DP-3 Transmitter - Front w/Back Cover

OS Digitron DP-3 Tx Back - Airplanes and Rockets

OS Digitron DP-3 Transmitter - Back

OS Digitron DP-3 Transmitter Open Back - Airplanes and Rockets

OS Digitron DP-3 Transmitter - Open Back

OS Digitron DP-3 Transmitter PCB Component Side - Airplanes and Rockets

OS Digitron DP-3 Transmitter - Printed Circuit Board Component Side

OS Digitron DP-3 Front 3/4 View - Airplanes and Rockets

OS Digitron DP-3 Transmitter - Front 3/4 View

OS Digitron DP-3 Transmitter Right Gimbal - Airplanes and Rockets

OS Digitron DP-3 Transmitter - Right Gimbal

OS Digitron DP-3 Transmitter Right Side - Airplanes and Rockets

OS Digitron DP-3 Transmitter - Right Side

OS Digitron DP-3 Transmitter NiCad Battery Pack - Airplanes and Rockets

OS Digitron DP-3 Transmitter - NiCad Battery Pack

OS Digitron DP-3 Top w/Open Back - Airplanes and Rockets

OS Digitron DP-3 Transmitter - Top w/Open Back

OS Digitron DP-3 Transmitter Left Gimbal - Airplanes and Rockets

OS Digitron DP-3 Transmitter - Left Gimbal

OS Digitron DP-3 Transmitter Left Side - Airplanes and Rockets

OS Digitron DP-3 Radio Control System - Transmitter - Left Side

 

OS 3-Channel Radio Control System - Airplanes and Rockets    OS 3-Channel Radio Control System - Airplanes and Rockets    OS 3-Channel Radio Control System - Airplanes and Rockets

OS Digital 3-Channel R/C System Servos on eBay

OS Digital 3-Channel R/C System Servos on eBay (modelenginegarage) - Airplanes and Rockets    OS Digital 3-Channel R/C System Receiver on eBay (modelenginegarage) - Airplanes and Rockets    OS Digital 3-Channel R/C System Transmitter on eBay (modelenginegarage) - Airplanes and Rockets    OS Digital 3-Channel R/C System Servos on eBay (modelenginegarage) - Airplanes and Rockets

OS Digital 3-Channel R/C System Servos on eBay (modelenginegarage)

See other Vintage Radio Control Systems here.

Here is a photo of an OS 6 channel radio that went up for bids on eBay in July of 2008. I've been waiting for one of the 3 channel models.

OS 6-Channel Radio Control System - Airplanes and Rockets    OS 6-Channel Radio Control System - Airplanes and Rockets

 

Posted September 14, 2015

About Airplanes & Rockets 

Kirt Blattenberger, Webmaster - Airplanes and RocketsKirt Blattenberger

Carpe Diem! (Seize the Day!)

Even during the busiest times of my
life I have endeavored to maintain
some form of model building activity.
This site has been created to help me chronicle my journey through a lifelong involvement in model aviation, which all began in Mayo, MD ...

Copyright 1996 - 2030

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