As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LOUD BUZZ AND STATIC ON RADIOS WHICH FIRST OFFICERS COMM SIDE WENT OUT. CAPTAIN'S SIDE BARELY TRANSMIT. ELECTRICAL ODOR FOLLOWED. FLIGHT DECLARED EMERGENCY AND RETURNED TO DEPARTURE. ACCOMPLISHED VHF BITE AND OPS TEST PER MM 23-12-01. NO STATIC HEARD. BITE TESTED GOOD. SEAL SECURED. CLEANED OVEN.