Noisy Mac Plus

[sleestack808]

I thought I would post this here. Maybe someone who really knows the Mac Plus will know this sound.

 

[Byrd]

Have you opened it up to find the source? No fan - or shouldn't be - unless someone has put one in or maybe the floppy drive is making the noise.

 

[Callan]

It could also be coming through the speaker too. You're going to have to take the top off and do some investigating. Has any service work been done to the machine, or is this a 'found in the wild'' plus?