What if it oscillates over only the high frequency end?
With this fault good reception of stations near the top end of the band is possible, but lower frequency stations are weak and cannot be separated from one another. Firstly check that your connections to the regeneration capacitor are right. The tag labelled ‘G’ should be earthed and the ‘A’ tag should go to the regeneration coil. Do not use the ‘O’ tag – this is the 60pF section and is too small for our application. If the problem persists, add a few more turns to the regeneration coil. Q. The set does not appear to cover the entire broadcast band. If the receiver is not tuning high frequency stations, set any trimmers on the variable capacitor to minimum and try again. If this makes little difference, remove turns from the tuning coil, a few at a time, until these stations can be received. When doing this tune to the bottom end of the band to ensure that lower frequency stations can still be received. Add turns if you’re missing stations near the bottom end of the band. Again ensure
