OK, guys.....last week there was a question about using different servos with different receivers, and what wiring adjustments must be made. My question is along the same lines but more of a puzzle. I was given a scale Grunau Baby with servos already installed in the wings for ailerons and airbrakes. The aileron servos have Hitec type connectors and behave normally when attached to a Hitec receiver. The airbrake servos have multicolored wires that are not of any known color combination.....I think that they are just 3-wire extensions off the original that is sealed inside the wings. There are no connectors. Is there any way that I can determine with a voltmeter, ohmmeter or black magic which should be the +, - and signal wires without actually taking the covering off the wing? (which I don't want to do because it is a finished fabric covering!) TIA Dave Smith Vancouver Island Slope and Thermal Association RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED]