by AAVlover » Fri May 26, 2017 5:46 pm
btw - I think I have figured out why the old corroded horn doesn't work. Having cleaned it all up, and reattached all the wires etc etc, it still didn't work, however there was resistance between the terminals and I've adjusted all the adjustment screws etc and it still didn't work.
My theory is that the diaphragm disc, which is attracted to the electromagnets must have been chromed or plated somehow to make it magnetic, and, with the cleaning, as it was all corroded, I have removed this plating so it is now an unmagnetic alloy, like aluminium. Whilst I'm exploring other options, I've decided to have it chromed with some other bits, to see if that is the cause - would this make sense?????