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So who's doing this reviewing then?

Well I've been building and flying or driving radio controlled models for over 40 years and during that time I like to think I've built up a reasonable amount of knowledge.

I'm also a qualified electronics engineer who has worked in radio frequency, analog, digital systems and software for more than three decades. In fact I designed and built my first RC set back in 1969.

For the past nine years I've also been involved in the design and manufacture of some rather sophisticated engine technology and UAV flight control systems.

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Hobby City stuffs up HXT 9320MG Servo supplies



27 June 2008
The Chinese-made HXT 9320MG servo has proved to be very popular, and one of the cheapest places to buy them has been Hobby City but the current batch of these servos is nothing like previous ones and that's got customers mad.

The servos currently being shipped are nothing like the ones currently advertised on the Hobby City site in terms of power or precision.

Previous samples of this servo had a ball-bearing output, a torque that is very similar to a servo twice the size and more than acceptable precision and centering. The ones currently being shipped are nowhere near as good and appear to be a completely different servo, using far smaller gears (as can be seen in the picture below) and having far less than the rated torque.

One, less than happy customer says "I sent my five servos back to and told them I DO NOT want a replacement of the SAME SERVO. These servos are no good. THE WHOLE BATCH IS NO GOOD."

Another claims he "received two HXT 9320MGs today and tested them. Both are faulty with centering problems. When left idle, the servo seems to have a life of its own and drifts away from center. I will be returning them. I too do not want replacements of the same unit."

A customer from Sweden posted this video to YouTube, showing the terrible precision and centering of the new batch:

Even the servo case on this new batch is significantly different to the original ones, leading some to speculate that Hobby City may have changed suppliers or opted for a cheaper servo to sell under the same name. However, it would not surprise me if the manufacturer has either shipped the wrong product (please put some damned labels on these servos) or decided to cut costs and re-design this servo using cheaper parts.

Whatever the reasons, the message to Hobby City customers is clear: do not order any HXT9302MG servos until the cause of the problem is determined and there are guarantees that you won't be shipped these decidedly inferior and seemingly defective servos.

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