- the radio turns on
- the radio makes noise, and gets louder with the volume knob
- but turning the tuning knob does not move the needle or change the station
Step 1: Disassembly 1: remove knobs
On these old radios, the last thing to go on was the knobs.
Therefore, the first step for us is to remove the knobs.
These knobs pull straight off; they aren't glued or screwed on.
Pictured: the offending tuner knob. The inner knob is the AM/FM selector. The translucent ring is the tuner. You can see how it's toothed on the inside.