Yesterday, 01:40 PM
1. I was about to say what you later said you'd like to do. Change the speaker, see if a know good one rattles also. Use the same or large size.
2. Yes you could connect a "coil" speaker, if you mean a speaker with the field coil. However you will need to energize the coil, which require some decent voltage of a few 10s of V. Depending on where the old speaker came from, try to find a suitable power source, fairly clean, and then see if it works well.
But nowadays large PM speakers are not rare and fairly inexpensive. I would just buy one. I have a couple for this purpose only: got both for $1 in Kutztown.
2. Yes you could connect a "coil" speaker, if you mean a speaker with the field coil. However you will need to energize the coil, which require some decent voltage of a few 10s of V. Depending on where the old speaker came from, try to find a suitable power source, fairly clean, and then see if it works well.
But nowadays large PM speakers are not rare and fairly inexpensive. I would just buy one. I have a couple for this purpose only: got both for $1 in Kutztown.
People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.