I believe I would let someone else look at that radio before junking it.
Some technicians are better than others. If you could find an old ham
operator that has done a little amatuer equipment building to look at it.
Just a suggestion, I just hate for you to give up to easily.
Best Wishes,
FRED C. ADAMS W4HC
SOW TO THE WIND
AND REAP THE WHIRLWIND!!