Questions about new ServoXciter (V3.00)
I just received my new ServoXciter EF (V3.00) today and after playing with it a bit, I have several questions that I hope can be answered. - What plug size and polarity fits the new DC power jack port on the top edge of the unit? What current will be required from a wall transformer powering the unit through this port, and should the 9v battery be removed when powering the unit from this port? - Can custom center and end-point drive values be reset to defaults without having to reset everything else in the unit? - The online manual differs in several areas from the manual shipped with the unit (which is the correct one). Can the online version be updated so that I can readily print out a spare copy to take with me in my field box? Thanks for any help with the above questions. I'm quite pleased with the unit so far - it seems to be well designed and well built. It should prove to be very useful in the near future.

- The new DC power recepticle requires a plug with a 0.70 mm inner diameter (ID) and a 2.35mm outer diameter (OD) - the transformer used should have a positive center, 8 to 12 volts, and capable of 800+ mA. The ServoXciter EF's internal 9-volt battery should be removed when using the external power source. - Resetting the ServoXciter EF's defaults resets the endpoints, center point, menu configuration, servo rotation - basically all the configurable items. There isn't a way to reset only the endpoints and center point. - The online manual has been updated (11-7-2008). Thank you fpr bringing this to our attention.

ServoXciter external power supply
I've played around with my useful new ServoXciter EF so much that I've already run down its first 9v battery. Accordingly, I've researched an external power supply solution - a little pricey but easy to implement. Finding a compatible power plug was the main issue, since the small diameter coaxial plug (2.3 mm OD, 0.7 mm ID) that fits the external power port is not easy to find, especially attached to the required transformer (8-12 VDC, 800 mA). Fortunately, Radio Shack has a series of AC-DC power transformers that accept its Adaptaplug series of power plugs, one of which is exactly what is needed. The items needed are the 9VDC, 800 mA transformer (part 273-1768) and the coaxial adapter plug model "A" (part 273-1704). Be sure to orient the adapter plug properly when attaching it to the transformer's cable - it can be plugged in two ways, only one of which is correct (center conductor positive). The $19 transformer is sold with the arrangement that the buyer gets any one Adaptaplug free. There may well be less expensive transformers out there with the correct coaxial plug, but what I've described above is quick and easy to find.

Thank you for this great post and the included Radio Shack part numbers! When we decided to add the power supply option we didn't have much room to work with within the enclosure so the small diameter plug (2.3 mm OD, 0.7 mm ID) was our only option. During -*test*-('")ing we used a Radio Shack multi-voltage multi-plug power transformer, but it was something we bought a few years earlier and no longer had part number information.