I just noticed that my Rider Perpetual Trouble Shooters Manual ( Vols 1 thru 21 ) have Hammarlund up to the HQ129. Does anyone know if they ever did the HQ-145? The Rider's sure did a nice job at identifying where the components were! If you wanted to find R27 it was right there on the picture with an arrow! Sure beats tracing the wiring.... K3PID Ron H.