Used Radio obtained

Radio equipment obtained by bidding in YaHoo Auction at 2,300 yen had some problem, the main potentiometers keeping the controlling pulse were moved according to the former owner, so disassembling of the transmitter was obliged regardless of my favor. Connecting factory adjusted standard servos, I did setting the terminal positions of the main potentiometers one by one with some keen concentrations. Checking semiconductors inside on the cards, no defects especially on capacitors were found and the main functions to control an airplane were kept well in spite of the ancient production date of 1985. Remember, circuitry formed by semiconductors lasts unlimitedly if there occurs no short nor disconnection, problem is electrolytic capacitors arranged. Also, lubrication of moving and slipping parts in the mechanical closed Gimbal construction was performed for smooth stick movements.