STUDENT PLT DEPARTED PAE WITHOUT ATC CLRNC.

Narrative

OVER KENMORE AIR; I ANNOUNCED LNDG INTENTIONS FOR PAE CLASS D ARPT. I ANNOUNCED 3 TIMES WAITING 2 MINS BTWN ANNOUNCEMENTS. AFTER THE THIRD ANNOUNCEMENT; I WAS TOLD TO USE A DOWNWIND R APCH TO RWY 34R. THIS DID NOT SEEM TO MAKE SENSE; SINCE I WAS APCHING FROM THE S. I REQUESTED A STRAIGHT-IN APCH TO RWY 34R; AND WAS GIVEN PERMISSION. APCH AND LNDG WENT FINE. I REQUESTED A TAXI BACK SO THAT I COULD TAKE OFF AGAIN RIGHT AWAY. I MISTAKENLY HELD SHORT OF AN INTXN AND ANNOUNCED THAT I WAS READY FOR TKOF. THE CTLR POINTED THIS OUT. I TAXIED TO THE NEXT GATE; AND HELD SHORT OF THE RWY ENTRANCE. I ANNOUNCED THAT I WAS READY TO TAKE OFF ON RWY 34R. I WAITING ABOUT 1 MIN; AND AGAIN ANNOUNCED THAT I WAS READY FOR TKOF. I WAITED FOR ABOUT 1 MIN AGAIN; AND REPEATED THAT I WAS A STUDENT PLT; AND ASKED WHETHER I HAD CLRNC FOR TKOF. I WAITED FOR ANOTHER MIN AND STILL DID NOT GET A RESPONSE. I TURNED OFF MY RADIO AND TURNED IT ON AGAIN. I WAS UNSURE AT THIS POINT IF I HAD ALREADY RECEIVED PERMISSION TO TAKE OFF. I SAW NO OTHER TFC. I ANNOUNCED THAT I WAS TAKING OFF. I TOOK OFF AND TURNED R AT 700 FT AGL. I THEN HEARD FROM THE CTLR THAT MY FREQ CHANGE WAS APPROVED; AND I PROCEEDED TO MY HOME ARPT. I TALKED WITH FLT INSTRUCTORS AT HARVEY FIELD (S43). THEY SAID THAT SINCE I WAS UNSURE THAT I HAD CLRNC TO TAKE OFF; I SHOULD NOT HAVE DONE SO. I SHOULD HAVE TAXIED BACK TO THE HANGAR AND SHOULD HAVE KEPT TRYING TO CONTACT THE CTLR. IF I COULD NOT; I SHOULD HAVE PARKED THE PLANE AND CALLED HARVEY FIELD.