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Tower Hobbies Deluxe Power Panel

Tower Hobbies Deluxe Power Panel (Mounted) - Airplanes and RocketsSomething about using electric power systems for model airplanes has never filled sufficiently the 'hole' left by not hearing an internal combustion engine screaming. I switched over to electric more than a decade ago when the energy output of brushless motors and Li-Po batteries hit parity with glow engines. I have to admit that the reliability and ease of use of electric systems has its attractive features, not to mention no fuel mess to clean off the model. After finally deciding to start using Cox .049 engines again, I needed to re-acquire the field support equipment that was sold on eBay more than a decade ago.

HA17555 Timer IC - Airplanes and RocketsLooking at the original set for my custom Chameleon Field Box, you can see that a Royal power panel was on one end. I tried to find an exact replacement, but to no avail. This new-in-box vintage Tower Hobbies Deluxe Power Panel was available, however, and it fit right into the hole for the Royal panel. The Tower Hobbies panel is a step up from the Royal panel because the glow plug supply is electronically driven by a pulsed current circuit that is somewhat regulated. An HA17555 Precision Timer integrated circuit is used to generate the current pulses, while a power transistor in a TO-220 heat-sink package provides the drive to the glow plug/head. The Royal panel only had a 10 W resistor in series with the output. Otherwise, they both have outputs for the glow plug, and electric starter, and a fuel pump (with Fill/Empty switch and pushbutton operation).

A 12V gel cell battery sits below the power panel in the field box. For convenience, an additional set of banana binding posts and a set of spring-loaded jacks were added.

Tower Hobbies Deluxe Power Panel (PCB Foil Side) - Airplanes and RocketsTower Hobbies Deluxe Power Panel (PCB Component Side) - Airplanes and Rockets

Tower Hobbies Deluxe Power Panel (Instructions) - Airplanes and Rockets



Posted January 14, 2017

About Airplanes & Rockets

Kirt Blattenberger, Webmaster - Airplanes and Rockets
Kirt 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. There is a lot of good information and there are lot of pictures throughout the website that you will probably find useful, and might even bring back some old memories from your own days of yore. The website began life around 1996 as an EarthLink screen name of ModelAirplanes, and quickly grew to where more server space ...

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Modeling Resources

Academy of Model Aeronautics (AMA) - Airplanes and Rockets
Academy of Model Aeronautics

Tower Hobbies logo - Airplanes and Rockets
Tower Hobbies

Horizon Hobby logo - Airplanes and Rockets
Horizon Hobby

Brodak Manufacturing - Airplanes and Rockets
Brodak Mfg.