This video shows how I repaired the Air Chime speaker wiring in the 475 Rocket dummy unit I recently purchased.

I reached out to my friend that has the "MyGrandpa'sTrains" channel on YouTube for his advice on testing / troubleshooting the three terminal speaker.

After completing the checks he advised, I found the speaker was in good working order. I stopped by an electronics shop in Salem Oregon last week and purchased four replacement condenser/capacitors with matching 100 MFD - 15 volt DC ratings. They were very affordable at $3 for all four
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The new part was a complete success. I extended the positive leg so the condenser would hang in the open space between the speaker and the chassis. That way there will be no chance of heat buildup damaging the shell during operation.

Thank you for watching.