Flossie
Well-Known Member
The paper bit has totally rotted away but the cone bit looks ok. Pic below.
I've googled a bit and tested for a circuit between the + and - and that's OK I think..3 ohms resistance average. Next test is to put a 9v battery on the terminals and see if the cone goes up and down. Haven't got a battery to hand but would it still move with the paper missing? Thinking of glueing new papers on to save a few quid like what @kermit_rr did.
I've googled a bit and tested for a circuit between the + and - and that's OK I think..3 ohms resistance average. Next test is to put a 9v battery on the terminals and see if the cone goes up and down. Haven't got a battery to hand but would it still move with the paper missing? Thinking of glueing new papers on to save a few quid like what @kermit_rr did.